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Total result(s) found: 124
  • E. Ugur, A. D. Sheikh, R. Munir, J. I. Khan, D. Barrit, A. Amassian*, F. Laquai*, “Improved Morphology and Efficiency of n–i–p Planar Perovskite Solar Cells by Processing with Glycol Ether Additives”, ACS Energy Letters 2, 1960-1968 (2017).​​​​​​​​​
Keywords:
Perovskite solar cells; ultraviolet–visible absorbance
  • ​P J Diemer, A F Harper, M R Niazi, A J Petty, J E Anthony, A Amassian, O D Jurchescu,  "Laser-Printed Organic Thin-Film Transistors" Advanced Materials Technologies, 2017​​
Keywords:
Charge carrier mobility; organic semiconductors; organic thin-film transistors; printed electronics
  • D. Barrit, A. D. Sheikh, R. Munir, J. M. Barbe, R. Li, D.-M. Smilgies, A. Amassian*, “Hybrid Perovskite Solar Cells: In situ investigation of solution-processed PbI2 reveals metastable precursors and a pathway to producing porous thin films” Journal of Materials Research 32, 1899-1907 (2017).
Keywords:
Hybrid perovskite solar cells; lead iodide; two-step conversion solution processing; sol–gel; in situ grazing incidence wide angle X-ray scattering
  • A. D. Sheikh, R. Munir, M. A. Haque, A. Bera, W. Hu, P. Shaikh, A. Amassian, T. Wu, “Effects of High Temperature and Thermal Cycling on the Performance of Perovskite Solar Cells: Acceleration of Charge Recombination and Deterioration of Charge Extraction”, ACS Applied Materials and Interfaces 9, 35018-35029 (2017).​​
Keywords:
Charge recombination; charge transfer; perovskite solar cell; spiro-OMeTAD; thermal cycle
  • S. Masi, A. Rizzo, R. Munir, A. Listorti, A. Giuri, C. E. Corcione, N. D. Treat, G. Gigli, A. Amassian*, Natalie Stingelin*, Silvia Colella*, “Organic Gelators as Growth Control Agents for Stable and Reproducible Hybrid Perovskite-Based Solar Cells”, Advanced Energy Materials 7, 1602600 (2017).​​
Keywords:
Halide perovskites; organic gelators; photovoltaics
  • A. Wadsworth, R. S. Ashraf, M. Abdelsamie, S. Pont, M. Little, M. Moser, Z. Hamid, M. Neophytou, W. Zhang, A. Amassian, J. R. Durrant, D. Baran, I. McCulloch* , “Highly Efficient and Reproducible Nonfullerene Solar Cells from Hydrocarbon Solvents”, ACS Energy Letters 2, 1494–1500 (2017).
Keywords:
Solar cells; hydrocarbon
  • M. Abulikemu, M. Neophytou, J. M. Barbe, M. L. Tietze, A. El Labban, D. Anjum, A. Amassian, I. McCulloch, S. Del Gobbo*, “Microwave-Synthesized Tin Oxide Nanocrystals for Low-Temperature Solution-Processed Planar Junction Organo-Halide Perovskite Solar Cells” Journal of Materials Chemistry A 5, 7759 (2017).​​
Keywords:
Electron transporting; tin oxide; nanoparticles
  • A. R. Kirmani, F. P. García de Arquer, J. Z. Fan, J. I. Khan, G. Walters, S. Hoogland, N. Wehbe, M. M. Said, S. Barlow, F. Laquai, S. R. Marder, E. H. Sargent, A. Amassian*, “Molecular Doping of the Hole-Transporting Layer for Efficient, Single-Step Deposited Colloidal Quantum Dot Photovoltaics”, ACS Energy Letters 2, 1952-1959 (2017).​​
Keywords:
Solar cells; perovskite; HTL
  • Y. Mei, P. J. Diemer, M. R. Niazi, R. K. Hallani, K. Jarolimek, C. S. Day, C. Risko, J. E. Anthony, A. Amassian, O. D. Jurchescu, “Crossover from band-like to thermally activated charge transport in organic transistors due to strain-induced traps”, Proceedings of the National Academy of Sciences 114, E6739-E6748 (2017).
Keywords:
Organic semiconductors; organic field-effect transistors; charge-carrier mobility; electronic traps; organic devices
  • T. Kim, E. Palmiano, R.-Z. Liang, H. Hu, B. Murali, A. R. Kirmani, Y. Firdaus, Y. Gao, A. Sheikh, M. Yuan, O. F. Mohammed, S. Hoogland, P. M. Beaujuge, E. H. Sargent, A. Amassian*, “Hybrid tandem quantum dot/organic photovoltaic cells with complementary near infrared absorption”, Applied Physics Letters 110, 223903 (2017).​​
Keywords:
Solar cells; quantum; resistance
  • G. G. Giesbrecht, M. Percher, P. Brunet, Y. Richard, M. Alexander, A. Bellemare, Y. Rawal, A. Amassian, G. Mcdonald, “An automatic window opening system to prevent drowning in vehicles sinking in water”, Cogent Engineering 4, 1347990 (2017).
Keywords:
Self-rescue; emergency procedures; vehicle in watersinking; cardrowning
  • R. Munir, A. D. Sheikh, M. Abdelsamie, H. Hu, L. Yu, K. Zhao, T. Kim, O. El Tall, R. Li, D.M. Smilgies, A. Amassian*, “Hybrid Perovskite ThinFilm Photovoltaics: In Situ Diagnostics and Importance of the Precursor Solvate Phases”, Advanced Materials 29, 1604113 (2017).​​
Keywords:
Hybrid organic–inorganic perovskite solar cells; in situ diagnostics; precursors; solution processing; solvates
  • A. E. Mansour, A. R. Kirmani, S. Barlow, S. R. Marder, A. Amassian*, “Hybrid Doping Strategy for Few-Layer Graphene via a Combination of Intercalation and Surface Doping”, ACS Applied Materials & Interfaces 9, 20020-20028 (2017).​​
Keywords:
Electrical transport; few-layer graphene; intercalation; molecular doping; transparent conducting electrode; work function
  • X. Zhang, X. Ren, B. Liu, R. Munir, X. Zhu, D. Yang, J. Li, Y. Liu, D.-M. Smilgies, R. Li, Z. Yang, T. Niu, X. Wang, A. Amassian, K. Zhao, S. F. Liu, “Stable high efficiency two-dimensional perovskite solar cells via cesium doping”, Energy & Environmental Science 10, 2095-2102 (2017).​​​
Keywords:
DMSO; Pbl2
  • S. Zhang, J. Zhang, M. Abdelsamie, Q. Shi, Y. Zhang, T. C. Parker, E. V. Jucov, T. V. Timofeeva, A. Amassian, G. C. Bazan, S. B. Blakey, S. Barlow, S. R. Marder, “Intermediate-Sized Conjugated Donor Molecules for Organic Solar Cells: Comparison of Benzodithiophene and Benzobisthiazole-Based Cores”, Chemistry of Materials 29, 7880-7887 (2017).​​
Keywords:
Solar cells; oligomers
  • Y. Firdaus, L. P. Maffei, F. Cruciani, M. A. Müller, S. Liu, S. Lopatin, N. Wehbe, G. O. N. Ndjawa, A. Amassian, F. Laquai, P. M. Beaujuge, “Polymer MainChain Substitution Effects on the Efficiency of Nonfullerene BHJ Solar Cells”, Advanced Energy Materials 1700834 (2017).
Keywords:
3,4-difluorothiophene; benzo[1,2-b:4,5-b′]dithiophene (BDT); ITIC; nonfullerene acceptor; organic photovoltaics; polymer solar cells
  • L. Yu, M. R. Niazi, G. O. Ngongang Ndjawa, R. Li, A. R. Kirmani, R. Munir, A. H. Balawi, F. Laquai, A. Amassian*, “Programmable and Coherent Crystallization of Semiconductors”, Science Advances 3, e1602462 (2017).​​​
Keywords:
Crystallization; polycrystalline thin films; amorphous thin films; small-molecule organic semiconductors; organic electronics; organic thin film transistors; homogeneous nucleation; patterning; classical nucleation theory; nucleation and growth
  • D Kiefer, L Yu, E Fransson, A Gómez, D Primetzhofer, A Amassian, M C Quiles, C Müller "A Solution-Doped Polymer Semiconductor:Insulator Blend for Thermoelectrics​" Advanced Sciences, 2017


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Keywords:
conjugated polymers; insulators; molecular dopants; organic thermoelectrics; semiconductors; ternary blend
  • J. Li, Y. Liu, X. Ren, Z. Yang, R. Li, H. Su, X. Yang, J. Xu, H. Xu, J.Y. Hu, A. Amassian, K. Zhao, S. F. Liu*, “Solution Coating of Superior LargeArea Flexible Perovskite Thin Films with Controlled Crystal Packing”, Advanced Optical Materials 5, 1700102 (2017).​​
Keywords:
Controlled crystal packing; flexible perovskite thin films; solution shearing
  • L. J. Richter*, D. M. DeLongchamp*, A. Amassian* “In-situ Studies of Morphology Development in Solution Processed Functional Organic Blend Films”, Chemical Reviews 119, 6332–6366 (2017).
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Keywords:
Organic films; transistors; solar cells; emitters
  • H. Faber*, S. Das, Y.-H. Lin, N. Pliatsikas, K. Zhao, T. Kehagias, G. Dimitrakopulos, A. Amassian, P. P. Patsalas*, T. D. Anthopoulos*, “Heterojunction oxide thin-film transistors with unprecedented electron mobility grown from solution”, Science Advances 3, e1602640 (2017).​​
Keywords:
Metal oxide semiconductorssolution processingFlexible Electronicsheterojunction transistorsthin-film transistors
  •  J Barbé, M L Tietze, M Neophytou, B Murali, E Alarousu, A E Labban, M Abulikemu, W Yue, O F Mohammed, I McCulloch, A Amassian, S DGobbo, "Amorphous Tin Oxide as Low Temperature-Processed Electron Transport Layer for Organic and Hybrid Perovskite Solar Cells", American Chemical Society, 2017​​​
Keywords:
Perovskite Solar Cells, Tin Oxide Electron Transport Layer, Chemical Bath, Deposition, Ultraviolet Photoelectron Spectroscopy, Organic Solar cells
  • S. P. Sarmah, V. Burlakov, E. Yengel, B. Murali, E. Alarousu, A. M. El-Zohry, C. Yang, M. S. Alias, A. A. Zhumekenov, M. I. Saidaminov, N. Cho, N. Wehbe, S. Mitra, I. A. Ajia, S. Dey, A. E. Mansour, M. Abdelsamie, A Amassian, I. S. Roqan, B. S. Ooi, A. Goriely, O. M. Bakr, O. F. Mohammed, “Double Charged Surface Layers in Lead Halide Perovskite Crystals”, Nano Letters 17, 2021-2027 (2017).​​
Keywords:
Ion migration; lead halide; perovskite crystal; Nanometer surface layers; one vs two-photon excitation
  • G. O. Ngongang Ndjawa, K. R. Graham, S. Mollinger, D. M. Wu, D. Hanifi, R. Prasanna, B. D. Rose, S. Dey, L. Yu, J.L. Brédas, M. D. McGehee, A. Salleo, A. Amassian*, “OpenCircuit Voltage in Organic Solar Cells: The Impacts of Donor Semicrystallinity and Coexistence of Multiple Interfacial ChargeTransfer Bands”, Advanced Energy Materials 7, 1601995 (2017).

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Keywords:
Charge-transfer states; small molecule organic solar cells; organic photovoltaics; charge-transfer states; open-circuit voltage
Keywords:
Few-layer graphene; doping;metal-organic molecular dopants; transparent conducting electrodes; solution-processed
  • K. R. Graham, G. O. Ngongang Ndjawa, S. M. Conron, R. Munir, K. Vandewal, J. J. Chen, S. Sweetnam, M. E. Thompson, A. Salleo, M. D McGehee, A. Amassian*, “The Roles of Structural Order and Intermolecular Interactions in Determining Ionization Energies and ChargeTransfer State Energies in Organic Semiconductors”, Advanced Energy Materials 6, 1601211 (2016).
Keywords:
charge-transfer states; ionization energies; organic electronics; organic photovoltaics; ultraviolet photoelectron spectroscopy
  • L. K. Jagadamma, H. Hu, T. Kim, G. O. N. Ndjawa, A. E. Mansour, A. El Labban, J. C. D. Faria, R. Munir, D. H. Anjum, M. A. McLachlan, A. Amassian*, “Solution-processable MoOx nanocrystals enable highly efficient reflective and semitransparent polymer solar cells”, Nano Energy 28, 277-287 (2016).

Keywords:
Organic solar cells; polymer solar cells; molybdenum oxide; hole transporting layer; hole injection layer; semitransparent solar cells; silver nanowire electrode; transparent electrode
  • Y. Zhong, R. Munir, A. H. Balawi, A. D. Sheikh, L. Yu, M.-C. Tang, H. Hu, F. Laquai, A. Amassian*, “Mesostructured Fullerene Electrodes for Highly Efficient n–i–p Perovskite Solar Cells”, ACS Energy Letters 1, 1049-1056 (2016).
Keywords:
Solar cells; electron-transporting material
  • A. R. Kirmani, A. Kiani, M. M. Said, O. Voznyy, N. Wehbe, G. Walters, S. Barlow, E. H. Sargent, S. R. Marder, A. Amassian*, “Remote Molecular Doping of Colloidal Quantum Dot Photovoltaics”, ACS Energy Letters 1, 922-930 (2016).​
Keywords:
Colloidal quantum dots; photovoltaics
  • K. Wang, R.Z. Liang, J. Wolf, Q. Saleem, M. Babics, P. Wucher, M. Abdelsamie, A. Amassian, M. R. Hansen, P. M. Beaujuge, “Donor and Acceptor Unit Sequences Influence Material Performance in Benzo [1, 2b: 4, 5b′] dithiophene–6, 7Difluoroquinoxaline Small Molecule Donors for BHJ Solar Cells”, Advanced Functional Materials 26, 7103-7114 (2016).

Keywords:
6,7-difluoroquinoxaline; benzo[1,2-b:4,5-b']dithiophene; bulk-heterojunction solar cells; charge transport; molecular packing; organic photovoltaics; small molecule donors
  • C. B. Nielsen, A. Giovannitti, D.-T. Sbircea, E. Bandiello, M. R. Niazi, D. A. Hanifi, M. Sessolo, A. Amassian, G. G. Malliaras, J. Rivnay, I. McCulloch, “Molecular Design of Semiconducting Polymers for High-Performance Organic Electrochemical Transistors”, Journal of the American Chemical Society 138, 10252-10259 (2016).

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Keywords:
Electrochemical transistor; PEDOT-based devices
  • Q. Shi, S. Zhang, J. Zhang, V. F. Oswald, A. Amassian, S. Marder, S. Blakey, “KOtBu Initiated Aryl C-H Iodination: A Powerful Tool for the Synthesis of High Electron Affinity Compounds” Journal of the American Chemical Society 138, 3946-3949 (2016).
Keywords:
Electron-deficient; electron transport; perylenediimide–thiazole
  • L. N. Quan, M. Yuan, R. Comin, O. Voznyy, E. M. Beauregard, S. Hoogland, A. Buin, A. R. Kirmani, K. Zhao, A. Amassian, D. H. Kim, E. H. Sargent, “Ligand-Stabilized Reduced-Dimensionality Perovskites”, Journal of the American Chemical Society 138, 2649-2655 (2016).​​
Keywords:
Phenylethylammonium; perovskites; synthesis
  • A. Mottram, Y.-H Lin, P. Pattanasattayavong, K. Zhao, A. Amassian, T. Anthopoulos, “Quasi Two-Dimensional Dye-sensitized In2O3 Phototransistors for Ultra-High Responsivity and Photosensitivity Color-Selective Photodetector Applications” ACS Applied Materials and Interfaces 8, 4894-4902 (2016).​
Keywords:
indium oxide; metal oxide transistor; photodetector; photosensitivity; phototransistor; responsivity
  • J.Semple, S.Rossbauer, C. Burgess, K. Zhao, L. K. Jagadamma, A. Amassian, M McLachlan, T. Anthopoulos, "Radio frequency Co-Planar ZnO Schottky Nanodiodes Processed from Solution on Plastic Substrates", Small 12, 1993-2000 (2016).​​
Keywords:
nanogap electrodes; radio frequency diodes; plastic substrates; schottky diode; nanodiodes
  • D. Baran, T. Kirchartz, S. Wheeler, S. Dimitrov, M. Abdelsamie, J. Gorman, R.S. Ashraf, S. Holliday, A. Wadsworth, N. Gasparini, P. Kaienburg, H. Yan, A. Amassian, C.J. Brabec, J.R. Durrant, I. McCulloch, “Reduced voltage losses yield 10% efficient fullerene free organic solar cells with> 1 V open circuit voltages”, Energy & Environmental Science 9, 3783-3793 (2016)​​
Keywords:
Solar cells; bandgap
  • A. Giovannitti, C. Nielsen, D. Sbircea, S. Inal, M. Donahue , M. Niazi, D. Hanifi, A. Amassian, G. G. Malliaras, J. Rivnay, I. McCulloch, “N-type organic electrochemical transistors with stability in water” Nature Communications 7, 13955 (2016).
Keywords:
Electrochemical transistors; ambipolar; sensor
  • H. W. Ro, J. M. Downing, S. Engmann, A. A. Herzing, D. M. DeLongchamp*, L. J. Richter*, S. Mukherjee, H. Ade*, M. Abdelsamie, L. K. Jagadamma, A. Amassian*, Y. Liu, H. Yan*, “Morphology changes upon scaling a high-efficiency, solution-processed solar cell”, Energy & Environmental Science 9, 2835-2846 (2016).​
Keywords:
Blade-coating; OPV devices
  • K. Zhao, H. Hu, E. Spada, L. K. Jagadamma, B. Yan, M. Abdelsamie, Y.  Li, L. Yu, R. Munir, R. Li, G. O. Ngongang Ndjawa, A. Amassian*, “Highly Efficient Polymer Solar Cells with Printed Photoactive Layer: Rational Process Transfer from Spin-Coating”, Journal of Materials Chemistry A 4, 16036-16046 (2016).​​
Keywords:
Solar cells; bulk heterojunction; spin-coating
  • M.Abulikemu, S. Ould-Chikh, X. Miao, E. Alarousu, B. Murali, G. O. Ngongang Ndjawa, J. Barbé, A. El Labban, A. Amassian, S Del Gobbo*, “Optoelectronic and photovoltaic properties of the air-stable organohalide semiconductor (CH3NH3)3Bi2I9”, Journal of Materials Chemistry A 4, 12504-12515 (2016).​​
Keywords:
Perovskite; optoelectronics
  • S. P. Schießl, H. Faber, Y.-H. Lin, S. Rossbauer, Q. Wang, K. Zhao, A. Amassian, J. Zaumseil, T. D. Anthopoulos, “Hybrid Modulation-Doping of Solution-Processed Ultra-Thin Layer of ZnO using Molecular Dopants”, Advanced Materials 28, 3952-3959 (2016).​​​
Keywords:
Doping; metal oxide semiconductors; modulation doping; molecular doping; organic semiconductors
  • M. R. Niazi, R. Li, M. Abdelsamie, K. Zhao, D. H. Anjum, M. M. Payne, J. E. Anthony, D.-M. Smilgies, A. Amassian*, “Contact-induced nucleation in high performance bottom-contact organic thin film transistors manufactured by large-area compatible solution processing”, Advanced Functional Materials 26, 2371-2378 (2016).
Keywords:
Blade coating; contact-induced nucleation; organic semiconductors; organic thin film transistors; polymer:molecule blends
  • ​D. Baran, R. S. Ashraf, D. A. Hanifi, M. Abdelsamie, N. Gasparini, J. A. Röhr, S. Holliday, A. Wadsworth, S. Lockett, M. Neophytou, C. J. M. Emmott, J. Nelson, C. J. Brabec, A. Amassian, A. Salleo, T. Kirchartz, J. R. Durrant, I. McCulloch, "Reducing the efficiency-stability-cost gap of organic photovoltaics with highly efficient and stable small molecule acceptor ternary solar cells ", Nature Materials16
    ,
     
    363–369 (2016).
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Keywords:
Conjugated polymers; electronic materials; photonic devices; solar cells
  • M. Liu, O. Voznyy, R. Sabatini, F. P. García de Arquer, R. Munir, A. H. Balawi, X. Lan, F. Fan, G. Walters, A. R. Kirmani, S. Hoogland, F. Laquai, A. Amassian, E. H Sargent, “Hybrid organic-inorganic inks flatten the energy landscape in colloidal quantum dot solids”, Nature Materials 16, 258-263 (2016).
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Keywords:
Quatum dots; solar cells
  • B. Murali, S. Dey, A. L. Abdelhady, W. Peng, E. Alarousu, A. R. Kirmani, N. Cho, S. P. Sarmah, M. R. Parida, M. I. Saidaminov, A. A. Zhumekenov, J. Sun, M. S. Alias, E. Yengel, B. S. Ooi, A. Amassian*, O. M. Bakr*, O. F. Mohammed*, “Surface Restructuring of Hybrid Perovskite Crystals”, ACS Energy Letters 1, 1119-1126 (2016).​​
Keywords:
Charge-transfer states; ionization energies; organic electronics; organic photovoltaics; ultraviolet photoelectron spectroscopy
  •  B. S. Shaheen, A. M. Hafez, B. Murali, A. R. Kirmani, A. Amassian, O. F. Mohammed, N. K. Allam, “10-fold enhancement in light-driven water splitting using niobium oxynitride microcone array films”, Solar Energy Materials and Solar Cells 151, 149-153 (2016).
Keywords:
Oxynitride; water splitting; anodization; photo-electrodes; microcones
  • K. Zhao, H. Ullah Khan, R. Li, H. Hu, A. Amassian*, “Carrier Transport Enhancement in Conjugated Polymers through Interfacial Self-Assembly of Solution-State Aggregates”, ACS Applied Materials and Interfaces 8, 19649-19657 (2016).​​
Keywords:
Aggregation; charge transport; conjugated polymers; organic thin film transistor; surface functionalization
  • Q. Shi, S. Zhang, J. Zhang, V.F. Oswald, A. Amassian, S.R. Marder, S.B. Blakey, “Synthesis of High Electron Affinity Materials Using Aryl C–H Iodination”, Synfacts 12, 0587-0587 (2016).​​​​​
Keywords:
Electron affinity; iodination; compound synthesis
  • ​Mengxia Liu, F de Arquer, Yiying Li, Xinzheng Lan, Gi‐Hwan Kim, Oleksandr Voznyy, Lethy Krishnan Jagadamma, Abdullah Saud Abbas, Sjoerd Hoogland, Zhenghong Lu, Jin Young Kim, Aram Amassian, Edward H Sargent "Double-Sided Junctions Enable High-Performance Colloidal-Quantum-Dot Photovoltaics" Advanced Materials 28 (21), 4142-4148, 2016- DOI: 10.1002/adma.201506213
Keywords:
charge extraction; colloidal quantum dots; In-doped ZnO; solar cells
  • F. Selzer, C. Floresca, D. Kneppe, L. Bormann, C. Sachse, N. Weiß, N. Gaponik, A. Eychmueller, A. Amassian, L. Mueller-Meskamp, K. Leo, “Electrical limit of silver nanowire electrodes: Direct measurement of the nanowire junction resistance”, Applied Physics Letters 108, 163302 (2016).​​
Keywords:
Nanowires; electrical resistivity; bioelectrochemistry; electrodes; networks
  • K. Zhao, O. Wodo, D. Ren, H. U. Khan, M. R. Niazi, H. Hu, M. Abdelsamie, R. Li, E. Li, L. Yu, B. Yan, M.M.Payne, J. Smith, J.E. Anthony, T.D. Anthopolous, S. Thorodssen, B. Ganapathysubramaniam, A. Amassian*, "Vertical Phase Separation in Small Molecule: Polymer Blend Organic Thin Film Transistors Can Be Dynamically Controlled"  Advanced Functional Materials 26,1737-1746 (2016).
Keywords:
In situ UV–vis absorption; organic thin film transistors; phase field simulations; polymer-molecule blends; vertical phase separation
  • M. M. Said, Y. Zhang, R. R. Dasari, D. H. Anjum, R. Munir, H. Hu, A. Amassian, S. Barlow, S. R. Marder, “Ultra-low p-doping of poly(3-hexylthiophene) and its impact on polymer aggregation and photovoltaic performance” Organic Photonics and Photovoltaics 4, 1-16 (2016).​​
Keywords:
Organic photovoltaics; morphology; molecular dopant; X-ray scattering; p-doping
  • H. Faber, Y.-H. Lin, S. R. Thomas, M. A. McLachlan, K. Zhao, A. Amassian, N. Pliatsikas, P. A. Patsalas, T. D. Anthopoulos, “Indium Oxide Thin-Film Transistors Processed at Low Temperature via Ultrasonic Spray Pyrolysis”, ACS Applied Materials & Interfaces 7, 782 (2015).​​
Keywords:
metal oxide; plastic electronics; spray pyrolysis; thin-film transistors
  • K. Zhao, X. Yu, R. Li, A. Amassian, Y. Han, “Solvent-dependent self-assembly and ordering in slow-drying semi-crystalline conjugated polymer solutions”, Journal of Materials Chemistry C 3, 9842-9848  (2015).
Keywords:
conjugated polymer; semiconductiong thin flims
  • A. O. El-Ballouli, E. Alarousu, A. R. Kirmani, A. Amassian, O. M. Bakr, O. F. Mohammed, “Overcoming the Cut-off Charge Transfer Bandgaps at the PbS Quantum Dot Interface”, Advanced Functional Materials 25, 7435-7441 (2015).
Keywords:
Charge carrier injection; interfacial electrostatic interaction; quantum dots; photovoltaic devices; time-resolved spectroscopy
  • M. Abdelsamie, N. D. Treat, K. Zhao, C. McDowell, M. A. Burgers, R. Li, D.-M. Smilgies, N. Stingelin, G. C. Bazan, A. Amassian*, “Toward additive-free small-molecule organic solar cells: Roles of the donor crystallization pathway and dynamics”, Advanced Materials 27, 7285-7292 (2015).​​
Keywords:
Additive-free solar cells; bulk heterojunction solar cells; flash DSC; small molecules; solvent additives
  • A. R. Kirmani, W. Peng, R. Mahfouz, A. Amassian, Y. Losovyj, H. Idriss, H. Katsiev,“On the relation between chemical composition and optical properties of denotation nanodiamonds, Carbon 94, 79-84 (2015).
Keywords:
Nanodiamonds; photoemission spectroscopy
  • M R. Niazi, R. Li, E. Q. Li, A. R. Kirmani, M. Abdelsamie, Q. Xiao, W. Pan, M. M. Payne, J. E. Anthony, D.-M. Smilgies, S. T. Thoroddsen, E. P. Giannelis, A. Amassian*, “Solution-printed organic semiconductor blends exhibiting transport properties on par with single crystals”, Nature Communications 6, 8598 (2015).

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Keywords:
Organic thin-film transistors; blade-coating
  • K. Do, C. Risko, J. E. Anthony, A. Amassian, J.-L. Brédas, “Dynamics, Miscibility & Morphology in Polymer-Molecule Blends: The Impact of Chemical Functionality”, Chemistry of Materials 27, 7643-7651 (2015).​​
Keywords:
Organic photovoltaic; solar cells
  • ​G-H. Kim, F. P. Gracia de Arquer, Y. J. Yoon, X. Lan, M. Liu, O. Voznyy, Z. Yang, F. Fan, H. Alexander, P. Kanjanaboos, S. Hoogland, J. Y. Kim, E. H. Sargent, "High-Efficiency Colloidal Quantum Dot Photovoltaics via Robust Self-Assembled Monolayers" Nano Letters 15,7629 (2015)​​.​​
Keywords:
Quantum dot solar cells; high performance; R-SAM; robust; interface; dipole moment
  • T. Kim, Y. Gao, H. Hu, B. Yan, Z. Ning, L. K. Jagadamma, K. Zhao, A. R. Kirmani, J. Eid, M. M. Adachi, E. H. Sargent, P. M. Beaujuge*, A. Amassian*, “Hybrid Tandem Depleted Heterojunction Quantum Dot and Polymer Bulk Heterojunction Solar Cells”, Nano Energy 17, 196-205 (2015).​​​​​
Keywords:
Hybrid tandem solar cells; Colloidal quantum dot;Polymer; Conjugated polyelectrolyte
  • K. Zhao, G. O. Ngongang Ndjawa, L. Krishnan Jagadamma, A. El Labban, H. Hu, Q. Wang, R. Li, M. Abdelsamie, P. M. Beaujuge, A. Amassian*, “Highly Efficient Organic Solar Cells Based on a Robust Room-Temperature Solution-Processed Copper Iodide Hole Transporter”, Nano Energy 16, 458-469 (2015).​​​
Keywords:
Organic photovoltaics; Organic solar cells; Copper iodide; Hole transporting layer; Buffer layer; Solution processed
  • C. McDowell, M. Abdelsamie, K. Zhao, D.-M. Smilgies, G. C. Bazan*, A. Amassian*, “Synergistic Impact of Solvent and Polymer Additives on the Film-Formation of Small Molecule Blend Films for Bulk Heterojunction Solar Cells”, Advanced Energy Materials 5, 1501121 (2015).​​​​​
Keywords:
Bulk heterojunction (BHJ) solar cells; polymer additive processing; solution processable small molecules;solvent additive processing; thin film morphology
  • K. Mahmoud, B. S. Swain, A. Amassian*, “16.1% Efficient Hysteresis-Free Mesostructured Perovskite Solar Cells Based on Synergistically Improved ZnO Nanorod Arrays”, Advanced Energy Materials  5, 1500568 (2015).​​​​​
Keywords:
Perovskite solar cells; ZnO nanorods; mesostructured electron transporting material; conjugated polyelectrolyte; polyethylenimine
  • G. O. Ngongang Ndjawa, K. R. Graham, S. M. Conron, P. Erwin, R. Li, K. W. Chou, G. Burkhard, K. Zhao, E. T. Hoke, M. E. Thompson, M. D. McGehee, A. Amassian*, “Impact of Molecular Orientation and Interfacial Mixing on the Performance of Organic Solar Cells”, Chemistry of Materials 27, 5597-5604 (2015).​​
Keywords:
ITO-coated glass substrate; XPS; UPS
  • A. Mansour, S. Dey, M. H. Tanielian, A. Amassian*, “Bromination of Graphene: A New Route to Making High Performance Transparent Conducting Electrodes with Low Optical Losses”, ACS Applied Materials and Interfaces 7, 17692-17699 (2015).

Keywords:
Graphene; few layers graphene; transparent conducting electrodes; doping; bromine
  • W. Yue, R. S. Ashraf, C. B. Nielsen, E. Collado-Fregoso, M. R. Niazi, S. A. Yousaf, M. Kirkus, H.-Y. Chen, A. Amassian, J. R. Durrant, I. McCulloch, “A Thieno[3,2-b][1]benzothiophene Isoindigo Building Blocks for Additive- and Annealing-Free High-Performance Polymer Solar Cells”, Advanced Materials 27, 4702-4707 (2015).​​
Keywords:
Additive free; annealing free; molecular weight; solar cells; thieno[3,2-b][1]; benzothiophene isoindigo;
  • ​K Mahmood, B S Swain, A R Kirmani, A Amassian,"Highly efficient perovskite solar cells based on a nanostructured WO 3–TiO 2 core–shell electron transporting material"  Journal of Materials Chemistry, 2015​​
Keywords:
Perovskite solar cells; nanostructured WO 3–TiO; 2 core–shell electron transporting material
  • I. J. Kramer, J. C. Minor, G. Moreno-Bautista, L. Rollny, P. Kanjanaboos, D. Kopilovic, S. M. Thon, K. W. Chou, A. Amassian, E. H. Sargent, “Efficient Spray-Coated Colloidal Quantum Dot Solar Cells”, Advanced Materials 27, 116 (2015).​​​
Keywords:
Colloidal quantum dots; photovoltaics
  • A. A. Jahnke, L. Yu, N. Coombs, A. Scaccabarozzi, P. M. DiCarmine, A. Amassian, N. Stingelin, D. S. Seferos, “Polytellurophenes provide elemental contrast to unravel the structure-property-function relationship in semiconductor:insulator polymer blends”, Journal of Materials Chemistry C 3, 3767-3773 (2015).
Keywords:
Polytellurophenes; imaging contrast; semiconductor; insulator polymer blends
  • H. Hu, K. Zhao, N. Fernandes, L. Yu, P. Boufflet, J. H. Bannock, J. C. de Mello,  N. Stingelin, M. Heeney, E. P. Giannelis,  A. Amassian*, “Entanglements in Marginal Solutions: A Means of Tuning Pre-Aggregation of Conjugated Polymers with Positive Implications for Charge Transport”, Journal of Materials Chemistry C 3, 7394-7404 (2015).​​​
Keywords:
Marginal solutions; pre-aggregation of conjugated polymers; positive implications for charge transport
  • K. Mahmood*, B. S. Swain*, A. Amassian, “Core–shell heterostructured metal oxide arrays enable superior light-harvesting and hysteresis-free mesoscopic perovskite solar cells”, Nanoscale 7, 12812-12819 (2015).​​
Keywords:
Core–shell heterostructured metal oxide; perovskite solar cells; light-harvesting and hysteresis-free mesoscopic perovskite solar cells
  • ​R Kroon, A Melianas, W Zhuang, J Bergqvist, A Diaz de Zerio Mendaza, T T Steckler, L Yu, S J Bradley, C Musumeci, D Gedefaw, T Nann, A Amassian, C Müller, O Inganäs, M R Andersson, "Comparison of selenophene and thienothiophene incorporation into pentacyclic lactam-based conjugated polymers for organic solar cells"  Polymer Chemistry, 2015 ​​
Keywords:
Selenophene; thienothiophene; lactam-based conjugated polymers; organic solar cells
  • K. Zhao, R. Munir, B. Yan, Y. Yang, T. Kim, A. Amassian*, “Solution-Processed Copper Thiocyanate (CuSCN) Hole Transporting Layer for Efficient p-i-n Perovskite Solar Cells”, Journal of Materials Chemistry A 3, 20554-20559 (2015).
    ​​​​
Keywords:
Transporting layer for p-i-n; perovsikite solar cells; solution-processed inorganic copper(I); Thiocyanatehole transporting layer
  • L. Richter, D. A. Delongchamp, K. W. Chou, A. Amassian, E. Schaible, A. Hexemer, “In-situ morphology studies of the mechanism for solution additive effects on the formation of bulk heterojunction films”, Advanced Energy Materials 5, 1400975 (2015). ​​
Keywords:
Organic photovoltaics; organic electronics; phase transitions; morphology
  • L. Sinatra, A. P. LaGrow, W. Peng, A. R. Kirmani, A. Amassian, H. Idriss, O. M. Bakr, “A Au/Cu2O–TiO

    system for photo-catalytic hydrogen production. A pn-junction effect or a simple case of in situ reduction?”

    Journal of Catalysis 322, 109-117 (2015).
Keywords:
Hydrogen production; pn-Junction; XPS-Cu2p;
  • J. G. Labram, Y.-H. Lin, K. Zhao, S. R. Thomas, J. Semple, M. A. L. Sygellou, E. Stratakis, A. Amassian, M. McLachlan, T. D. Anthopoulos, “Signatures of Quantized Energy States in Solution-Processed Ultra-Thin Layers of Metal Oxide Semiconductors and Their Devices”, Advanced Functional Materials 25, 1727-1736 (2015).​​
Keywords:
Energy quantization; solution-processed semiconductors; semiconducting oxides; resonant tunneling diodes; zinc oxide
  • E. Buchaca-Domingo, K. Vandewal, Z. Fei, S. E. Watkins, F. H. Scholes, J. H. Bannock, J. de Mello, L. J. Richter, D. M. DeLongchamp, A. Amassian, M. Heeney, A. Salleo, N. Stingelin, “Direct correlation of charge transfer absorption with molecular donor:acceptor interfacial area via photothermal deflection spectroscopy”, Journal of the American Chemical Society 137, 5256-5259 (2015).​​
Keywords:
Direct correlation; molecular donor; acceptor interfacial area; spectroscopy; photothermal
  • Y.-H. Lin, H. Faber, E. Stratakis, L. Sygellou, E. Kymakis, N. A. Hastas, R. Li, K. Zhao, A. Amassian, N. D. Treat, M. McLachlan, T. D. Anthopoulos*, “High mobility thin-film transistors based on solution-processed oxide quasi-superlattices”, Advanced Science 2, 1500058 (2015).​​
Keywords:
Energy quantization; metal oxides; solution-processed materials; superlattices; transistors; transparent electronics
  • A Aboulhassan, D Baum, O Wodo, B G Subramanian, A Amassian, M Hadwiger, "A Novel Framework for Visual Detection and Exploration of Performance Bottlenecks in Organic Photovoltaic Solar Cell Materials​" Computer Graphics Forum 34, 401–410 (2015).​​
Keywords:
Organic electronics; photovoltaic devices; solar cells; bulk heterojunctions; charge transport
  • L. Krishnan Jagadamma, M. Al-Senani, A. El Labban, I. Gereige, G. O. Ngongang Ndjawa, J. C. D. Faria, T. Kim, K. Zhao, D. H. Anjum, M. A. Mclachlan, P. M. Beaujuge, A. Amassian*, “Polymer Solar Cells with Efficiency >10% Enabled via a Facile Solution-Processed Al-doped ZnO Electron Transporting Layer”, Advanced Energy Materials, 5, 1500204 (2015).
    ​​​​
Keywords:
Al-doped ZnO; organic solar cells; electron transporting layers; flexible solar cells; solution processing
  • K. Mahmood, B. Sankar Swain, A. Amassian*, "Highly Efficient Hybrid Photovoltaics Based on Hyperbranched Three-Dimensional TiO2 Electron Transporting Materials”, Advanced Materials 27, 2859-2865 (2015).
    ​​​​​
Keywords:
charge transport; electrodes; hyperbranched; photovoltaic devices; solar cells
  • J. A. Nekuda Malik, N. D. Treat, M. Abdelsamie, L. Yu, R. Li, D.-M. Smilgies, A. Amassian, C. J. Hawker, M. L. Chabinyc, N. Stingelin, “Controlling the solidification of organic photovoltaic blends with nucleating agents”, Organic Photonics and Photovoltaics 2, 59 (2014).

    ​​​​
Keywords:
Intermixing/ phase separation; fullerene blend
  • S. Sweetnam, K. R. Graham, G. O. Ngongang Ndjawa, T. Heumueller, J. A. Bartelt, T. M. Burke, W. You, A. Amassian, M. D. McGehee*, “Characterization of the polymer energy landscape in polymer:fullerene bulk heterojunctions with pure and mixed phases”, Journal of the American Chemical Society 136, 14078 (2014).

Keywords:
UV–vis absorption; ultraviolet photoelectron spectroscopy
  • A. LaGrow, L. Sinatra, A. Elshewy, K.-W. Huang, K. Katsiev, A. Kirmani, A. Amassian, A. Dalaver; O. Bakr, “Synthesis of Copper Hydroxide Branched Nanocages and their Transformation to Copper Oxide”, Journal of Physical Chemistry C 118, 19374 (2014).

Keywords:
Copper oxide; nanocages;
  • K. Mahmoud, B. S. Swain, A. Amassian*, “Double-layered ZnO nanostructures for efficient perovskite solar cells”, Nanoscale 6, 14674 (2014).

Keywords:
Perovskite; electron transport; ZnO film
  • K. R. Graham, C. Cabanetos, J. P. Jahnke, M. N. Idso, A. El Labban, G. O. Ngongang Ndjawa, K. Vandewal, A. Salleo, B. F. Chmelka, A. Amassian,* P. Beaujuge,* M. D. McGehee*, “Importance of the donor:fullerene intermolecular arrangement for high-efficiency organic photovoltaics”, Journal of the American Chemical Society 136, 9608 (2014).
Keywords:
Fullerene PV devices; NMR; donor–acceptor type polymers
  • L. Krishnan Jagadamma, M. Abdelsamie, A. El Laban, E. Arusu, G. O. Ngongang Ndjawa, D. H. Anjum, D. Cha, M. R. Niazi, K. Zhao, R. Li, P. Beaujuge, A. Amassian*, “Efficient Inverted Bulk-Heterojunction Solar Cells from Low-Temperature Processing of Amorphous ZnO Buffer Layers”, Journal of Materials Chemistry A 2, 13321 (2014).​

Keywords:
Solar cells; ZnO films; BHJ devices
  • K. W. Chou, H. Ullah Khan, B. Yan, R. Li, M. M. Payne, J. E. Anthony, D. M. Smilgies, A. Amassian*, “Late Stage Crystallization and Healing Enhance Carrier Transport in Spin-cast Small-Molecule Organic Semiconductors”, Journal of Materials Chemistry C 2, 5681 (2014).

    ​​
Keywords:
Organic thin-film transistors; small-molecule; spin casting; time-resolved grazing incidence wide-angle x-ray scattering
  • Z. Ning, O. Voznyy, J. Pan, S. Hoogland, V. Adinolfi, J. Xu, M. Li, A. Kirmani, J.-P. Sun, J. Minor, K. W. Kemp, H. Dong, L. Rollny, A. Labelle, G. Carey, B Sutherland, I. Hill, A. Amassian, H. Liu, J. Tang, O. M. Bakr, E H. Sargent, “Air stable n-type colloidal quantum dot solids”, Nature Materials 13, 822 (2014).​​
Keywords:
Materials for energy and catalysis
  • A. R. Kirmani, G. Carey, M. Abdelsamie, B. Yan, D. Cha, M. Abdelsamie, L. Krishnan Jagadamma, I. Gereige, R. Li, X. Cui, E. H. Sargent, A. Amassian*, “Effect of solvent environment on colloidal-quantum-dot solar-cell manufacturability and performance”, Advanced Materials 26, 4717 (2014).

    ​​
Keywords:
Colloidal quantum dots; ligand exchange; thin films; roll-to-roll processing
  •  J. W. Ward, R. Li, A. Obaid, M. Payne, D.-M. Smilgies, J. E. Anthony, A. Amassian*, O. D. Jurchescu*, “Rational Design of Organic Semiconductors for Texture Control and Self-Patterning on Halogenated Surfaces”, Advanced Functional Materials 24, 5052 (2014).​​​​​
Keywords:
Organic thin-film transistors; microstructures; organic semiconductors; μGIWAXS; halogen bonds
  • M. Yuan, K. W. Kemp, S. M. Thon, J. Y. Kim, K. W. Chou, A. Amassian, E. H. Sargent, “High-Performance Quantum-Dot Solids via Elemental Sulfur Synthesis”, Advanced Materials 26, 3513 (2014).

    ​​
Keywords:
PbS; synthesis; colloidal quantum dots; photovoltaics; depleted heterojunctions
  • E. B. Domingo, A. Ferguson, F. Jamieson, T. McCarthy-Ward, S. Shoaee, J. R Tumbleston, O. G. Reid, L. Yu, M.-B. Madec, M. Pfannmöller, F. Hermerschmidt, R. R. Schröder, S. E. Watkins, N. Kopidakis, G. Portale, A. Amassian, M. Heeney, H. Ade, G. Rumbles, J. Durrant, N. Stingelin, “Additive-assisted supramolecular manipulation of polymer: fullerene blend phase morphologies and its influence on photophysical processes” Materials Horizons 1, 63 (2014).

Keywords:
Fullerene bulk heterojunctions; carrier- dynamics
  • G. Giri, R. Li, D.-M. Smilgies, E. Q. Li, Y. Diao, K. M. Lenn, M. Chiu, D. W. Lin, R. Allen, J. Reinspach, S. C. B. Mannsfeld, S. T. Thoroddsen, P. Clancy, Z. Bao*, A. Amassian*, “One-Dimensional Self-Confinement Promotes Polymorph Selection in Large Area Organic Semiconductor Thin Films”, Nature Communications 5, 3573, 2014.

Keywords:
Organic semiconductor; X-ray; crystallization
  • D. J. Beesley, L. Krishnan Jagadamma, A. Amassian, J. C. de Mello, T. D. Anthopoulos, “Sub-15 nm patterning of asymmetric metal electrodes and devices by adhesion lithography”, Nature Communications 5, 3933, (2014).
    ​​
Keywords:
Electrodes; electron-beam lithography
  • K. Vandewal, S. Albrecht, E. T. Hoke, K. R. Graham, J. Widmer, J. D. Douglas, M. Schubert, W. R. Mateker, J. T. Bloking, G. F. Burkhard, A. Sellinger, J. M. J. Fréchet, A. Amassian, M. K. Riede, M. D. McGehee, D. Neher, A. Salleo, “Efficient charge generation by relaxed charge-transfer states at organic interfaces”, Nature Materials 13, 63-68 (2014).​​
Keywords:
Electronic devices; materials for energy and catalysis; solar cells; solar energy and photovoltaic technology
  • M. Abdelsamie, K. Zhao, M. R Niazi, K. W. Chou, A. Amassian*, “In situ UV-Visible absorption during spin-coating of organic semiconductors: A new probe for organic electronics and photovoltaics”, Journal of Materials Chemistry C, 2, 3373-3381(2014).​ ​​
Keywords:
Spin-coating; UV-visible absorption
  • K. Katsiev, A. H. Ip, A. Fischer, I. Tanabe, X. Zhang, A. R. Kirmani, O. Voznyy, L. R. Rollny, K. W. Chou, S. M. Thon, G. H. Carey, X. Cui, A. Amassian, P. Dowben, E. H. Sargent, O. M. Bakr, “The Complete InGap Electronic Structure of Colloidal Quantum Dot Solids and Its Correlation with Electronic Transport and Photovoltaic Performance” Advanced Materials 26, 937-942(2014). ​​​​
Keywords:
Electronic structure; quantum dots; photoelectron spectroscopy; photovoltaics; trap states
  • U. S. Bhansali, M. A. Khan, D. Cha, M. N. AlMadhoun, R. Li, L. Chen, A. Amassian, I. Odeh, H. N. Alshareef, “Metal-free, single-polymer device exhibits resistive memory effect”, ACS Nano 7, 10518-10524 (2013).​​
Keywords:
Flexible substrates; metal filament; PEDOT:PSS; polymer electrodes; resistive memory; solution process
  • N. Singh, K. Zhao, Y. Saeed, R. Li, J. E. Anthony, A. Amassian, U. Schwingenshloegl, “Influence of substitution on the optical properties of functionalized pentacene monomers and crystals: Experiment and theory”, Chemical Physics Letters 585, 95-100 (2013).

    ​​​​
Keywords:
Organic electronics; photovoltaic devices; solar cells; bulk heterojunctions; charge transport
  • L. A. Perez, K. W. Chou, J. A. Love, T. S. van der Poll, D.-M. Smilgies, T.-Q. Nguyen, E. J. Kramer, A. Amassian*, G. C. Bazan*, “Solvent additive effects on solution processable small molecule crystallization and structural evolution in bulk heterojunction solar cells probed in situ during spin-casting”, Advanced Materials 25, 6380-6384 (2013). ​​​​
Keywords:
Organic photovoltaics (OPV); bulk heterojunction (BHJ) solar cells; solution processable small molecules; solvent additive processing; thin film morphology
  • L. G. AbdulHalim, S. Ashraf, K. Katsiev, A. R. Kirmani, N. Kothalawala, D. H. Anjum, S. Abbas, A. Amassian, F. Stellacci, A. Dass, I. Hussain, O. M. Bakr, “A Scalable Synthesis of Highly Stable and Water Dispersible Ag44(SR)30 Nanoclusters”, Journal of Materials Chemistry A 1, 10148-10154 (2013).​​​​
Keywords:
Optical absorption spectrum; nanoclusters
  • P. Maraghechi, A. J. Labelle, A. R. Kirmani, X. Lan, M. M. Adachi, S. M. Thon, S. Hoogland, A. Lee, Z. Ning, A. Fischer, A. Amassian, E. H. Sargent, “The Donor Supply Electrode Enhances Performance in Colloidal Quantum Dot Solar Cells”, ACS Nano 7, 6111-6116 (2013).

    ​​​​​
Keywords:
Atomic layer deposition; charge-transfer doping; colloidal quantum dot; donor−supply electrode; photovoltaics; solar cells
  • K. R. Graham, P. Erwin, D. Nordlund, K. Vandewal, R. Li, G. O. Ngongang Ndjawa, E. T. Hoke, A. Salleo, M. E. Thompson, M. D. McGehee,* A. Amassian*, “Reevaluating the Role of Sterics and Electronic Coupling in Determining the Open Circuit Voltage of Organic Solar Cells”, Advanced Materials 25, 6076-6082 (2013). ​​
Keywords:
Organic photovoltaic; open-circuit voltage; electronic coupling; charge-transfer state; organic solar cell
  • Y.-H. Lin, H. Faber, K. Zhao, Q. Wang, A. Amassian, M. McLachlan, T. D. Anthopoulos, “High-performance ZnO transistors processed via an aqueous carbon-free metal-oxide precursor route at temperatures between 80-180°C”, Advanced Materials 25, 4340-4346 (2013). ​​​​
Keywords:
Zinc oxide; thin film transistors; transparent electronics; plastic electronics; solution processing; UV conversion
  • K. Zhao, H. Ullah Khan, R. Li, Y. Su, A. Amassian*, “Entanglement of Conjugated Polymer chains Influences Carrier Transportation”, Advanced Functional Materials 23, 6024-6035 (2013).​​​​​
Keywords:
Entanglement; molecular self-assembly; organic transistors; P3HT; thin films
  • G. H. Carey, K. W. Chou, B. Yan, A. R. Kirmani, A. Amassian, E. H. Sargent*, “Materials Processing Strategies for Colloidal Quantum Dot Solar Cells: Advances, Present-Day Limitations, and Pathways to Improvement”, MRS Communications 3, 83-90 (2013).​ ​​​​​
Keywords:
Solar cells; bandgap
  • H. Ullah Khan, R. Li, Y. Ren, L. Chen, M. M. Payne, U. S. Bhansali, D.-M. Smilgies, J. E. Anthony, A. Amassian*, “Solvent vapor annealing in the molecular regime drastically improves carrier transport in small-molecule thin film transistors”, ACS Applied Materials and Interfaces, 5, 2325-2330 (2013). ​​​​
Keywords:
Organic electronics; organic thin film transistors; quartz crystal microbalance with dissipation; solution processing; solvent vapor annealing; TIPS-pentacene
  • K. W. Chou, B. Yan, R. Li, E. Q. Li, K. Zhao, D. H. Anjum, S. Alvarez, R. Gassaway, A. Biocca, S. T. Thoroddsen, A. Hexemer, A. Amassian*, “Spin-cast bulk heterojunction solar cells: A dynamical investigation” Advanced Materials 25, 1923-1929 (2013). ​​​​​
Keywords:
Organic photovoltaics; bulk heterojunction; spin casting; time-resolved grazing incidence small and wide angle x-ray scattering; in situ spectral reflectometry
  • P. Pattanasattayavong, G. O. Ngongang Ndjawa, K. Zhao, K. W. Chou, N. Yaacobi-Gross, B. C. O’Regan, A. Amassian, T. D. Anthopoulos*,”Electric field-induced hole transport in copper(I) thiocyanate (CuSCN) thin-films processed from solution at room temperature”, Chemical Communications 49, 4154-4156 (2013).

    ​​​​
Keywords:
Solution-processed films; copper(I) thiocyanate (CuSCN)
  • R. Li, H. U. Khan, D.-M. Smilgies, M. M. Payne, J. E. Anthony, A. Amassian*, “Heterogeneous Nucleation Promotes Carrier Transport in Solution-Processed Organic Field-Effect Transistors”, Advanced Functional Materials 23, 291-297 (2013).​​​
Keywords:
Solution processing; thin-film growth; organic field-effect transistors; in situ characterization; Avrami model
  • P. Pattanasattayavong, N. Yaacobi-Gross, K. Zhao, G. O. Ngongang Ndjawa, J. Li , F. Yan , B. C. O’Regan , A. Amassian*, T. D. Anthopoulos*, “Hole-Transporting Transistors and Circuits Based on the Transparent Inorganic Semiconductor Copper(I) Thiocyanate (CuSCN) Processed from Solution at Room Temperature”, Advanced Materials 25, 1504-1509 (2013).

    ​​​​
Keywords:
Wide-bandgap p-type semiconductors; transparent transistors; copper thiocyanate; solution processing
  • J.A. Bartelt, Z.M. Beiley, E.T. Hoke, W.R. Mateker, J.D. Douglas, B.A. Collins, J.R. Tumbleston, K.R. Graham, A. Amassian, H. Ade, J.M.J. Fréchet, M.F. Toney, and M.D. McGehee, “The importance of fullerene percolation in the mixed regions of polymer-fullerene bulk heterojunction solar cells”, Advanced Energy Materials 3, 364-375 (2013).

    ​​​​​​​
Keywords:
Organic electronics; photovoltaic devices; solar cells; bulk heterojunctions; charge transport
  • Kui Zhao , Hadayat Ullah Khan , Ruipeng Li , Yisong Su , and Aram Amassian *,"Entanglement of Conjugated Polymer Chains Influences Molecular Self-Assembly and Carrier Transport", Advanced Functional Materials Volume 23, Issue 48, pages 6024–6035, December 23, 2013.
Keywords:
entanglement;molecular self-assembly;organic transistors;P3HT;thin films
  • R. Li, H. U. Khan, D.-M. Smilgies, M. M. Payne, J. E. Anthony, A. Amassian, “Heterogeneous Nucleation Promotes Carrier Transport in Solution-Processed Organic Field-Effect Transistors”, Adv. Funct. Mater. 23, 291-297 (2013). (front cover).
Keywords:
solution processing;thin-film growth;organic field-effect transistors;in situ characterization;Avrami model
  • A. McGlashon, W. Zhang, D.-M. Smilgies, M. Shkunov, K. Genevicius, K. S. Whitehead, A. Amassian, G. G. Malliaras, D. D. C. Bradley, M. Heeney, A. J. Campbell*, “Spectroscopic and morphological investigation of conjugated photopolymerisable quinquethiophene liquid crystals”, Current Applied Physics 12, e59-e66 (2012).​ 
    ​​
Keywords:
Organic electronics; liquid crystal; organic field effect transistor
  • P. Pattanasattayavong, G. O. Ngongang Ndjawa, K. Zhao, K. W. Chou, N. Yaacobi-Gross, B. C. O’Regan, A. Amassian, T. D. Anthopoulos, "​Hole-Transporting Transistors and Circuits Based on the Transparent Inorganic Semiconductor Copper(I) Thiocyanate (CuSCN) Processed from Solution at Room Temperature."  Chem. Commun. 2012, DOI: 10.1039/c2cc37065d.

     

Keywords:
wide-bandgap p-type semiconductors,transparent transistors, copper thiocyanate, solution processing
  • C. Kanimozhi, N. Yaacobi-Gross, K. W. Chou, A. Amassian, T. D. Anthopoulos, S. Patil*, “Diketopyrrolopyrrole–Diketopyrrolopyrrole-Based Conjugated Copolymer for High-Mobility Organic Field-Effect Transistors”, Journal of the American Chemical Society 134, 16532-16535 (2012).

    ​​​​​
Keywords:
Conjugated copolymer; high-mobility; organic field-effect transistors
  • A. H. Ip, S. M. Thon, S. Hoogland, D. Zhitomirsky, R. Debnath, L. Levina, L. R. Rollny, G. H. Cary, O. Voznyy, A. Fischer, K. W. Kemp, I. J. Kramer, Z. Ning, A. J. Labelle, K. W. Chou, A. Amassian, E. H. Sargent*, “Hybrid passivated colloidal quantum dot solids”, Nature Nanotechnology 7, 577-582 (2012).​
Keywords:
Electronic properties and devices; nanoparticles; photonic structures and devices
  • N. Cates Miller, E. Cho, M. J. N. Junk, R. Gysel, C. Risko, D. Kim, S. Sweetnam, C. E. Miller, L. J. Richter, R. J. Kline, M. Heeney, I. McCulloch, A. Amassian, D. Acevedo, C. Knox, M. R. Hansen, D. Dudenko, B. F. Chmelka, M. F. Toney, J.-L. Brédas, M. D. McGehee*, “Use of X-Ray Diffraction, Molecular Simulations, and Spectroscopy to Determine the Molecular Packing in a Polymer-Fullerene Bimolecular Crystal”, Advanced Materials 24, 6071-6079 (2012).​​​​​​​​​​​
Keywords:
Organic photovoltaics; molecular structures; X-ray diffraction; molecular mechanics; nuclear magnetic resonance
  •  J. Smith, W. Zhang, R. Sougrat, K. Zhao, D. Cha, A. Amassian, D. C. Bradley, M. Heeney, I. McCulloch, T. D. Anthopoulos, “Solution processed small molecule-polymer blend OFETs with hole mobility greater than 5 cm2/Vs”, Adv. Mater. 24, 2441-2446 (2012).
Keywords:
organic field-effect transistors, blend organic semiconductors, organic semiconductors
  • R. Li, J. W. Ward, D.-M. Smilgies, M. M. Payne, J. E. Anthony, O. D. Jurchescu, A. Amassian*, “Direct Structural Mapping of Organic Field Effect Transistors Reveals Bottlenecks to Carrier Transport”, Advanced Materials 24, 5553-5558 (2012). ​​​
Keywords:
microbeam; μGIWAXS; OTFT; dif-TES-ADT
  •  J. Tang , K. Kemp , S. Hoogland , K. S. Jeong , H. Liu , L. Levina , M. Furukawa, X. Wang , R. Debnath , D. Cha, K. W. Chou, A. Fischer, A Amassian, J. Asbury, E. H. Sargent*, “Colloidal Quantum Dot Photovoltaics Using Atomic Ligand Passivation”, Nature Materials 10, 765–771 (2011).​​​​​​​
Keywords:
Optical; photonic and optoelectric materials; nanoscale materials; design synthesis and processing