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Total result(s) found: 130
  • Liyang Yu, Muhammad R Niazi, Guy O Ngongang Ndjawa, Ruipeng Li, Ahmad R Kirmani, Rahim Munir, Ahmed H Balawi, Frédéric Laquai, Aram Amassian, "Programmable and coherent crystallization of semiconductors", ​​​​​​​​​​​​
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
  • David Kiefer, Liyang Yu, Erik Fransson, Andrés Gómez, Daniel Primetzhofer, Aram Amassian, Mariano Campoy‐Quiles, Christian Müller, "A Solution-Doped Polymer Semiconductor:Insulator Blend for Thermoelectrics" Advanced Science 4 (1), 2017.DOI: ​10.1002/advs.201600203


    ​​​
Keywords:
conjugated polymers; insulators; molecular dopants; organic thermoelectrics; semiconductors; ternary blend
  •  Jianbo Li, Yucheng Liu, Xiaodong Ren, Zhou Yang, Ruipeng Li, Hang Su, Xiaoming Yang, Junzhuo Xu, Hua Xu, Jian‐Yong Hu, Aram Amassian, Kui Zhao, Shengzhong Frank Liu," Solution Coating of Superior Large-Area Flexible Perovskite Thin Films with Controlled Crystal Packing​" Advanced Optical Materials, 2017. ​DOI: 10.1002/adom.201700102
Keywords:
controlled crystal packing; flexible perovskite thin films; solution shearing
  • Lee J Richter, Dean M DeLongchamp, Aram Amassian​, "​Morphology Development in Solution-Processed Functional Organic Blend Films: An In Situ Viewpoint​", American Chemical Society​, 2017. DOI: 10.1021/acs.chemrev.6b00618
Keywords:
organic films, transistors, solar cells, emitters
  • Hendrik Faber, Satyajit Das, Yen-Hung Lin, Nikos Pliatsikas, Kui Zhao, Thomas Kehagias, George Dimitrakopulos, Aram Amassian, Panos A Patsalas, Thomas D Anthopoulos​, "Heterojunction oxide thin-film transistors with unprecedented electron mobility grown from solutionScience Advances  31 Mar 2017: Vol. 3, no. 3, e1602640. DOI: 10.1126/sciadv.1602640

Keywords:
metal oxide semiconductorssolution processingFlexible Electronicsheterojunction transistorsthin-film transistors
  • Jérémy Barbé, Max L Tietze, Marios Neophytou, Banavoth Murali, Erkki Alarousu, Abdulrahman El Labban, Mutalifu Abulikemu, Wan Yue, Omar F Mohammed, Iain McCulloch, Aram Amassian, Silvano del Gobbo, "Amorphous Tin Oxide as Low Temperature-Processed Electron Transport Layer for Organic and Hybrid Perovskite Solar Cells", American Chemical Society, 2017. DOI: 10.1021/acsami.6b13675
Keywords:
Perovskite Solar Cells, Tin Oxide Electron Transport Layer, Chemical Bath, Deposition, Ultraviolet Photoelectron Spectroscopy, Organic Solar cells.
  • Smritakshi Phukan Sarmah, Victor Burlakov, Emre Yengel, Banavoth Murali, Erkki Alarousu, Ahmed M El-Zohry, Chen Yang, Mohd Sharizal Alias, Ayan A Zhumekenov, Makhsud I Saidaminov, Namchul Cho, Nimer Wehbe, Somak Mitra, Idris A Ajia, Sukumar Dey, Ahmed E Esam Mansour, Maged Abdelsamie, Aram Amassian, Iman S Roqan, Boon S Ooi, Alain Goriely, Osman M Bakr, Omar F Mohammed, "Double Charged Surface Layers in Lead Halide Perovskitw Crystalas" Nano Letters, 2017.  DOI: 10.1021/acs.nanolett.7b00031
Keywords:
defects; ion migration; lead halide perovskite crystal; Nanometer surface layers; one vs two-photon excitation
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
Keywords:
Conjugated polymers; Electronic materials; Photonic devices; Solar cells
Keywords:
Quatum dots, solar cells
  • ​Banavoth Murali, Sukumar Dey, Ahmed L Abdelhady, Wei Peng, Erkki Alarousu, Ahmad R Kirmani, Namchul Cho, Smritakshi Phukan Sarmah, Manas R Parida, Makhsud I Saidaminov, Ayan A Zhumekenov, Jingya Sun, Mohd S Alias, Emre Yengel, Boon S Ooi, Aram Amassian, Osman M Bakr, Omar F Mohammed, "Surface Restructuring of Hybrid Perovskite Crystals" ACS Energy Letters 1 (6), 1119-1126, 2016. DOI: 10.1021/acsenergylett.6b00517
Keywords:
Hybrid perovskite crystals; complex microstructures; optoelectronic properties; SINGLE CRYSTAL
Keywords:
hybrid organic–inorganic perovskite solar cells; in situ diagnostics; precursors; solution processing;;solvates
  • ​Kenneth R Graham, Guy O Ngongang Ndjawa, Sarah M Conron, Rahim Munir, Koen Vandewal, John J Chen, Sean Sweetnam, Mark E Thompson, Alberto Salleo, Michael D McGehee, Aram Amassian, "The Roles of Structural Order and Intermolecular Interactions in Determining Ionization Energies and Charge‐Transfer State Energies in Organic Semiconductors" Advanced Energy Materials, 2016, DOI: 10.1002/aenm.201601211
Keywords:
charge-transfer states; ionization energies; organic electronics; organic photovoltaics; ultraviolet photoelectron spectroscopy
  • ​Basamat S Shaheen, Ahmed M Hafez, Banavoth Murali, Ahmad R Kirmani, Aram Amassian, Omar F Mohammed, Nageh 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
  • Kui Zhao, Hadayat Ullah Khan, Ruipeng Li, Hanlin Hu, Aram Amassian, "Carrier Transport Enhancement in Conjugated Polymers through Interfacial Self-Assembly of Solution-State Aggregates" ACS Applied Materials & Interfaces 8 (30), 19649-19657, 2016, DOI: 10.1021/acsami.6b04508
Keywords:
aggregation; charge transport; conjugated polymers; organic thin film transistor; surface functionalization
  • ​Qinqin Shi, Siyuan Zhang, Junxiang Zhang, Victoria F Oswald, Aram Amassian, Seth R Marder, Simon B 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 (12), 3946-3949, 2016- DOI: 10.1021/jacs.5b12259
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
  • ​Franz Selzer, Carlo Floresca, David Kneppe, Ludwig Bormann, Christoph Sachse, Nelli Weiß, Alexander Eychmüller, Aram Amassian, Lars Müller-Meskamp, Karl Leo, "Electrical limit of silver nanowire electrodes: Direct measurement of the nanowire junction resistance" Applied Physics Letters 108 (16), 163302, 2016- DOI: 10.1063/1.4947285
Keywords:
Nanowires; Electrical resistivity; Bioelectrochemistry;Electrodes; Networks
  • ​Kui Zhao, Olga Wodo, Dingding Ren, Hadayat Ullah Khan, Muhammad Rizwan Niazi, Hanlin Hu, Maged Abdelsamie, Ruipeng Li, Er Li, Liyang Yu, Buyi Yan, Marcia M Payne, Jeremy Smith, John E Anthony, Thomas D Anthopoulos, Sigurdur T Thoroddsen, Baskar Ganapathysubramanian, Aram Amassian, "Vertical Phase Separation in Small Molecule: Polymer Blend Organic Thin Film Transistors Can Be Dynamically Controlled",
    Advanced Functional Materials, 2016
      -DOI: 10.1002/adfm.201503943
     
     
Keywords:
N/A
  • ​Marcel M Said, Yadong Zhang, Raghunath R Dasari, Dalaver H Anjum, Rahim Munir, Hanlin Hu, Aram Amassian, Stephen Barlow, Seth 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), 1-16, 2016- DOI: 10.1515/oph-2016-0001
Keywords:
organic photovoltaics; morphology; molecular dopant; X-ray scattering; p-doping
  • ​InterfaceAla'a O El‐Ballouli, Erkki Alarousu, Ahmad R Kirmani, Aram Amassian, Osman M Bakr, Omar F Mohammed, "Overcoming the Cut‐Off Charge Transfer Bandgaps at the PbS Quantum Dot",  Advanced Functional Materials 25 (48), 7435-7441, 2015- DOI
Keywords:
charge carrier injection; interfacial electrostatic interaction; quantum dots; photovoltaic devices; time-resolved spectroscopy
  • ​Maged Abdelsamie, Neil D Treat, Kui Zhao, Caitlin McDowell, Mark A Burgers, Ruipeng Li, Detlef‐M Smilgies, Natalie Stingelin, Guillermo C Bazan, Aram Amassian, "Toward Additive‐Free Small‐Molecule Organic Solar Cells: Roles of the Donor Crystallization Pathway and Dynamics", Advanced Materials 27 (45), 7285-7292, 2015-DOI: 10.1002/adma.201503395
Keywords:
additive-free solar cells; bulk heterojunction solar cells; flash DSC; small molecules; solvent additives
Keywords:
N/A
  • ​Muhammad R Niazi, Ruipeng Li, Er Qiang Li, Ahmad R Kirmani, Maged Abdelsamie, Qingxiao Wang, Wenyang Pan, Marcia M Payne, John E Anthony, Detlef-M Smilgies, Sigurdur T Thoroddsen, Emmanuel P Giannelis, Aram Amassian, "Solution-printed organic semiconductor blends exhibiting transport properties on par with single crystals", Nature communications 6, 2015- doi:10.1038/ncomms9598
Keywords:
N/A
  • ​Khanh Do, Chad Risko, John E Anthony, Aram Amassian, Jean-Luc Brédas, "Dynamics, Miscibility, and Morphology in Polymer: Molecule Blends: The Impact of Chemical Functionality", Chemistry of Materials 27 (22), 7643-7651, 2015-DOI: 10.1021/acs.chemmater.5b02983
Keywords:
N/A
  • ​Gi-Hwan Kim, F Pelayo García de Arquer, Yung Jin Yoon, Xinzheng Lan, Mengxia Liu, Oleksandr Voznyy, Zhenyu Yang, Fengjia Fan, Alexander H Ip, Pongsakorn Kanjanaboos, Sjoerd Hoogland, Jin Young Kim, Edward H Sargent, "High-Efficiency Colloidal Quantum Dot Photovoltaics via Robust Self-Assembled Monolayers" Nano letters 15 (11), 7691-7696, (2015)-DOI: 10.1021/acs.nanolett.5b03677
Keywords:
Quantum dot solar cells; high performance; R-SAM; robust; interface; dipole moment
  • ​Taesoo Kim, Yangqin Gao, Hanlin Hu, Buyi Yan, Zhijun Ning, Lethy Krishnan Jagadamma, Kui Zhao, Ahmad R Kirmani, Jessica Eid, Michael M Adachi, Edward H Sargent, Pierre M Beaujuge, Aram Amassian, "Hybrid tandem solar cells with depleted-heterojunction quantum dot and polymer bulk heterojunction subcells", Nano Energy 17, 196-205, 2015- doi:10.1016/j.nanoen.2015.08.010
Keywords:
Hybrid tandem solar cells; Colloidal quantum dot;Polymer; Conjugated polyelectrolyte
  • ​Aram Amassian," Perovskite thin film formation during solution processing: an in situ time-resolved multiprobe investigation (Presentation Recording)", SPIE Organic Photonics+ Electronics, 95670A-95670A-1, (2015)
Keywords:
N/A
  • ​Aram Amassian, "Decoupling the semiconductor crystallization from the coating process to the benefit of solution-processed small-molecule organic thin film transistors (Presentation Recording)", SPIE Organic Photonics+ Electronics, 95680X-95680X-1, (2015)
Keywords:
N/A
  • ​Stefan P Schießl, Hendrik Faber, Yen‐Hung Lin, Stephan Rossbauer, Qingxiao Wang, Kui Zhao, Aram Amassian, Jana Zaumseil, Thomas D Anthopoulos, "Hybrid Modulation‐Doping of Solution‐Processed Ultrathin Layers of ZnO Using Molecular Dopants", Advanced Materials, 2015-

    DOI:

Keywords:
doping; metal oxide semiconductors;modulation doping; organic semiconductors
  • ​Kui Zhao, Guy O Ngongang Ndjawa, Lethy Krishnan Jagadamma, Abdulrahman El Labban, Hanlin Hu, Qingxiao Wang, Ruipeng Li, Maged Abdelsamie, Pierre M Beaujuge, Aram Amassian,"Highly efficient organic solar cells based on a robust room-temperature solution-processed copper iodide hole transporter", Nano Energy 16, 458-469, 2015-
    doi:10.1016/j.nanoen.2015.07.018
Keywords:
Organic photovoltaics; Organic solar cells;Copper iodide; Hole transporting layer; Buffer layer;Solution processed
  • Muhammad R Niazi, Ruipeng Li, Maged Abdelsamie, Kui Zhao, Dalaver H Anjum, Marcia M Payne, John Anthony, Detlef‐M Smilgies, Aram Amassian, "​Contact‐Induced Nucleation in High‐Performance Bottom‐Contact Organic Thin Film Transistors Manufactured by Large‐Area Compatible Solution Processing", Advanced Functional Materials,  2015- 10.1002/adfm.201502428

Keywords:
blade coating; contact-induced nucleation; organic semiconductors;organic thin film transistors; polymer:molecule blends
  • Caitlin McDowell, Maged Abdelsamie, Kui Zhao, Detlef‐M Smilgies, Guillermo C Bazan, Aram 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 (18), 2015-DOI: 10.1002/aenm.201501121
Keywords:
bulk heterojunction (BHJ) solar cells; polymer additive processing; solution processable small molecules;solvent additive processing; thin film morphology
  • ​Khalid Mahmood, Bhabani Sankar Swain, Aram Amassian, "16.1% Efficient Hysteresis‐Free Mesostructured Perovskite Solar Cells Based on Synergistically Improved ZnO Nanorod Arrays", Advanced Energy Materials 5 (17), 2015- DOI: 10.1002/aenm.201500568
Keywords:
perovskite solar cells; ZnO nanorods; mesostructured electron transporting material; conjugated polyelectrolyte;polyethylenimine
  • ​Guy O Ngongang Ndjawa, Kenneth R Graham, Ruipeng Li, Sarah M Conron, Patrick Erwin, Kang Wei Chou, George F Burkhard, Kui Zhao, Eric T Hoke, Mark E Thompson, Michael D McGehee, Aram Amassian,"Impact of Molecular Orientation and Spontaneous Interfacial Mixing on the Performance of Organic Solar Cells", Chemistry of Materials 27 (16), 5597-5604, 2015- DOI: 10.1021/acs.chemmater.5b01845
Keywords:
N/A
  • ​Ahmed E Mansour, Sukumar Dey, Aram Amassian, Minas H Tanielian,"Bromination of Graphene: A New Route to Making High Performance Transparent Conducting Electrodes with Low Optical Losses", ACS applied materials & interfaces 7 (32), 17692-17699, 2015-DOI: 10.1021/acsami.5b03274

Keywords:
graphene; few layers graphene; transparent conducting electrodes; doping; bromine
  • Wan Yue, Raja Shahid Ashraf, Christian B Nielsen, Elisa Collado‐Fregoso, Muhammad R Niazi, Syeda Amber Yousaf, Mindaugas Kirkus, Hung‐Yang Chen, Aram Amassian, James R Durrant, Iain McCulloch,"A Thieno [3, 2‐b][1] benzothiophene Isoindigo Building Block for Additive‐and Annealing‐Free High‐Performance Polymer Solar Cells", Advanced Materials 27 (32), 4702-4707, 2015-
Keywords:
additive free; annealing free; molecular weight; solar cells; thieno[3,2-b][1]; benzothiophene isoindigo;
  • ​Khalid Mahmood, Bhabani S Swain, Ahmad R Kirmani, Aram Amassian,"Highly efficient perovskite solar cells based on a nanostructured WO 3–TiO 2 core–shell electron transporting material", Journal of Materials Chemistry A 3 (17), 9051-9057, 2015- DOI: 10.1039/C4TA04883K
Keywords:
perovskite solar cells; nanostructured WO 3–TiO; 2 core–shell electron transporting material;
  • ​Illan J Kramer, James C Minor, Gabriel Moreno‐Bautista, Lisa Rollny, Pongsakorn Kanjanaboos, Damir Kopilovic, Susanna M Thon, Graham H Carey, Kang Wei Chou, David Zhitomirsky, Aram Amassian, Edward H Sargent,"Efficient Spray‐Coated Colloidal Quantum Dot Solar Cells", Advanced Materials 27 (1), 116-121, 2015-
Keywords:
colloidal quantum dots; photovoltaics
  • ​Ashlee A Jahnke, Liyang Yu, Neil Coombs, Alberto D Scaccabarozzi, Andrew J Tilley, Paul M DiCarmine, Aram Amassian, Natalie Stingelin, Dwight S Seferos, "Polytellurophenes provide imaging contrast towards unravelling the structure–property–function relationships in semiconductor: insulator polymer blends", Journal of Materials Chemistry C 3 (15), 3767-3773, 2015-
Keywords:
Polytellurophenes; imaging contrast; semiconductor; insulator polymer blends;
Keywords:
marginal solutions; pre-aggregation of conjugated polymers; positive implications for charge transport
  • ​Khalid Mahmood, Bhabani Sankar Swain, Aram Amassian,"Core–shell heterostructured metal oxide arrays enable superior light-harvesting and hysteresis-free mesoscopic perovskite solar cells", Nanoscale 7 (30), 12812-12819, 2015- DOI: 10.1039/C5NR02874D
Keywords:
Core–shell heterostructured metal oxide; perovskite solar cells; light-harvesting and hysteresis-free mesoscopic perovskite solar cells
  • ​Renee Kroon, Armantas Melianas, Wenliu Zhuang, Jonas Bergqvist, Amaia Diaz de Zerio Mendaza, Timothy T Steckler, Liyang Yu, Siobhan J Bradley, Chiara Musumeci, Desta Gedefaw, Thomas Nann, Aram Amassian, Christian Müller, Olle Inganäs, Mats R Andersson, "Comparison of selenophene and thienothiophene incorporation into pentacyclic lactam-based conjugated polymers for organic solar cells", Polymer Chemistry 6 (42), 7402-7409- DOI: 10.1039/C5PY01245G
Keywords:
selenophene; thienothiophene; lactam-based conjugated polymers; organic solar cells
  • K. Zhao, R. Munir, B. Yan, Y. Yang, T. Kim, A. Amassian, "Solution-processed inorganic copper(I) thiocyanate (CuSCN) hole transporting layers for efficient p–i–n perovskite solar cells", Journal of Materials Chemistry A 3, 20554-20559, 2015-
    DOI: 10.1039/c5ta04028k
Keywords:
transporting layer for p-i-n; perovsikite solar cells; solution-processed inorganic copper(I); Thiocyanatehole transporting layer;
  • ​Lee J Richter, Dean M DeLongchamp, Felicia A Bokel, Sebastian Engmann, Kang Wei Chou, Aram Amassian, Eric Schaible, Alexander Hexemer, "In situ morphology studies of the mechanism for solution additive effects on the formation of bulk heterojunction films", Advanced Energy Materials 5 (3)-
Keywords:
organic photovoltaics; organic electronics; phase transitions, Morphology
  • ​Lutfan Sinatra, Alec P LaGrow, Wei Peng, Ahmad R Kirmani, Aram Amassian, Hicham Idriss, Osman M Bakr, "A Au/Cu 2 O–TiO 2 system for photo-catalytic hydrogen production. A pn-junction effect or a simple case of in situ reduction?", Journal of Catalysis 322, 109-117, 2105-
    doi:10.1016/j.jcat.2014.11.012
Keywords:
Hydrogen production; pn-Junction; XPS-Cu2p; Cu2O(1 1 1) Raman
Keywords:
energy quantization; solution-processed semiconductors; semiconducting oxides; resonant tunneling diodes; zinc oxide
  • ​Ester Buchaca-Domingo, Koen Vandewal, Zhuping Fei, Scott E Watkins, Fiona H Scholes, James H Bannock, John C de Mello, Lee J Richter, Dean M DeLongchamp, Aram Amassian, Martin Heeney, Alberto Salleo, Natalie Stingelin, "Direct Correlation of Charge Transfer Absorption with Molecular Donor: Acceptor Interfacial Area via Photothermal Deflection", Journal of the American Chemical Society 137 (16), 5256-5259, 2015- DOI: 10.1021/ja512410f
Keywords:
Direct correlation; Molecular Donor; Acceptor interfacial area;Spectroscopy; Photothermal
Keywords:
energy quantization;metal oxides;solution-processed materials;superlattices;transistors;transparent electronics
Keywords:
Organic Photovoltaic Solar Cell Materials
Keywords:
Al-doped ZnO; organic solar cells; electron transporting layers; flexible solar cells; solution processing
  • Khalid Mahmood, Bhabani Sankar Swain, Aram Amassian; "Highly Efficient Hybrid Photovoltaics Based on Hyperbranched Three-Dimensional TiO2 Electron Transporting Materials", Advanced Materials 27 (18), 2859-2865, 2015,  DOI: 10.1002/adma.201500336
Keywords:
Hybrid photovoltaics, Third-generation solar cell, Electrospun hyperbranched , lead-halide perovskites
Keywords:
Molecular orientation, ZnPc/C60 bilayer systems,
  • Illan J. Kramer, James C. Minor,Gabriel Moreno-Bautista, Lisa Rollny,Pongsakorn Kanjanaboos, Damir Kopilovic1, Susanna M. Thon, Graham H. Carey, Kang Wei Chou, David Zhitomirsky, Aram Amassian and Edward H. Sargent," Efficient Spray-Coated Colloidal Quantum Dot Solar Cells".

Keywords:
colloidal quantum dots;photovoltaics
  • Khalid Mahmood, Bhabani S. Swain and Aram Amassian, "Double-layered ZnO nanostructures for efficient perovskite solar cells".

     

Keywords:
nanostructured double-layer ZnO, mesoscopic perovskite, perovskite solar cells.
  • Khalid Mahmood, Bhabani S. Swain, Ahmad R. Kirmani and Aram Amassian, "Highly efficient perovskite solar cells based on a nanostructured WO3–TiO2 core–shell electron transporting material".

Keywords:
perovskite solar cells, TiO2 and ZnO , electron transport layers , WO3 nanosheet arrays
  • Lee J. Richter, Dean M. DeLongchamp*, Felicia A. Bokel, Sebastian Engmann,Kang Wei Chou, Aram Amassian, Eric Schaible and Alexander Hexemer​,"In Situ Morphology Studies of the Mechanism for Solution Additive Effects on the Formation of Bulk Heterojunction Films".

Keywords:
organic photovoltaics;organic electronics;morphology;phase transitions
Keywords:
polymer:fullerene bulk heterojunctions, charge transport energy levels, cyclic voltammetry.
  • Jeremy W. Ward1, Ruipeng Li, Abdulmalik Obaid1, Marcia M. Payne, Detlef-M. Smilgies, John E. Anthony,Aram Amassian* andOana D. Jurchescu, "Organic Semiconductors: Rational Design of Organic Semiconductors for Texture Control and Self-Patterning on Halogenated Surfaces". 

Keywords:
organic thin-film transistors;microstructures;organic semiconductors;μGIWAXS;halogen bonds
Keywords:
Copper oxide nanostructures, energy storage, nanocages.
Keywords:
organic photovoltaic;donor:fullerene interfaces;heteronuclear correlation
Keywords:
Colloidal quantum dots;PbS CQD solid;
  • Ahmad R. Kirmani, Graham H. Carey,Maged Abdelsamie, Buyi Yan, Dongkyu Cha, Lisa R. Rollny, Xiaoyu Cui,Edward H. Sargent and Aram Amassian,"Effect of Solvent Environment on Colloidal-Quantum-Dot Solar-Cell Manufacturability and Performance", DOI: 10.1002/adma.201400577.
Keywords:
colloidal quantum dots;ligand exchange;thin films;roll-to-roll processing
  • Mingjian Yuan, Kyle W. Kemp, Susanna M. Thon, Jin Young Kim, Kang Wei Chou, Aram Amassian and Edward H. Sargent,*"High-Performance Quantum-Dot Solids via Elemental Sulfur Synthesis", DOI: 10.1002/adma.201305912.
Keywords:
PbS;synthesis;colloidal quantum dots;photovoltaics;depleted heterojunctions
Keywords:
asymmetric nanogap electrodes;nanogap electrodes ;
  • Jeremy W. Ward, Ruipeng Li,Abdulmalik Obaid, Marcia M. Payne,Detlef-M. Smilgies, John E. Anthony,Aram Amassian,* andOana D. Jurchescu,"Rational Design of Organic Semiconductors for Texture Control and Self-Patterning on Halogenated Surfaces, DOI: 10.1002/adfm.201400219.
Keywords:
organic thin-film transistors;microstructures;organic semiconductors;μGIWAXS;halogen bonds
Keywords:
in situ microbeam ;TIPS-pentacene;small-molecule organic semiconductor
  • Khabiboulakh Katsiev, Alexander H. Ip,Armin Fischer, Iori Tanabe, Xin Zhang,Ahmad R. Kirmani, Oleksandr Voznyy,Lisa R. Rollny, Kang Wei Chou,Susanna M. Thon, Graham H. Carey,Xiaoyu Cui, Aram Amassian, Peter Dowben, Edward H. SargentandOsman M. Bakr,"Photovoltaics: The Complete In-Gap Electronic Structure of Colloidal Quantum Dot Solids and Its Correlation with Electronic Transport and Photovoltaic Performance (Adv. Mater. 6/2014), DOI: 10.1002/adma.201470034.

Keywords:
electronic structure;quantum dots;photoelectron spectroscopy;photovoltaics;trap states
  • Lethy Krishnan Jagadamma , Maged Abdelsamie , Abdulrahman El Labban , Emanuele Aresu , Guy Olivier Ngongang Ndjawa , Dalaver H Anjum , Dongkyu Cha , Pierre Beaujuge andAram Amassian,"Efficient Inverted Bulk-Heterojunction Solar Cells from Low-Temperature Processing of Amorphous ZnO Buffer Layers", 

Keywords:
solution-processed amorphous zinc oxide;PCBM;
  • Kang Wei Chou , Hadayat Ullah Khan , Muhammad R. Niazi , Buyi Yan , Ruipeng Li , Marcia M. Payne , John E. Anthony , Detlef-M. Smilgies  and Aram Amassian *"Late stage crystallization and healing during spin-coating enhance carrier transport in small-molecule organic semiconductors", DOI: 10.1039/C4TC00981A (Paper) J. Mater. Chem. C,2014, 2, 5681-5689.

Keywords:
organic thin film transistor ; small-molecule organic semiconductor
  • Khabiboulakh Katsiev, Alexander H. Ip,Armin Fischer, Iori Tanabe, Xin Zhang,Ahmad R. Kirmani, Oleksandr Voznyy,Lisa R. Rollny, Kang Wei Chou,Susanna M. Thon, Graham H. Carey,Xiaoyu Cui, Aram Amassian, Peter Dowben, Edward H. SargentandOsman M. Bakr"The Complete In-Gap Electronic Structure of Colloidal Quantum Dot Solids and Its Correlation with Electronic Transport andPhotovoltaicPerformance", DOI: 10.1002/adma.201304166

     

     

Keywords:
electronic structure;quantum dots;photoelectron spectroscopy;photovoltaics;trap states
  • Maged Abdelsamie , Kui Zhao , Muhammad R. Niazi , Kang W. Chou and Aram Amassian *, In situ UV-visible absorption during spin-coating of organic semiconductors: a new probe for organic electronics and photovoltaics, DOI: 10.1039/C3TC32077D (Paper) J. Mater. Chem. C,2014, 2, 3373-3381.

Keywords:
in situ ; time resolved UV-visible absorption;the de facto reference conjugated polymer
  • E. Buchaca-Domingo *, A. J. Ferguson *, F. C. 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. R. Durrant  and N. Stingelin , "Additive-assisted supramolecular manipulation of polymer:fullerene blend phase morphologies and its influence on photophysical processes",DOI: 10.1039/C3MH00125C (Communication) Mater. Horiz.,2014, 1, 270-279.

Keywords:
polymer:fullerene; co-crystal formation;
Keywords:
organic electron-donating;electron-accepting ;organic solar cells ;
  • 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
Keywords:
PEDOT:PSS; resistive memory; flexible substrates; polymer electrodes; metal filament; solution process
  • Louis A. Perez , Kang Wei Chou, John A. Love, Thomas S. van der Poll, Detlef-M. Smilgies, Thuc-Quyen Nguyen, Edward J. Kramer, Aram Amassian,*andGuillermo C. Bazan,"Solar Cells: Solvent Additive Effects on Small Molecule Crystallization in Bulk Heterojunction Solar Cells Probed During Spin Casting (Adv. Mater. 44/2013)", Advanced Materials Volume 25, Issue 44, page 6305, November 26, 2013.

     

Keywords:
organic photovoltaics (OPV);bulk heterojunction (BHJ) solar cells;solution processable small molecules;solvent additive processing;thin film morphology
  • Kenneth R. Graham1,2, Patrick Erwin3,Dennis Nordlund4, Koen Vandewal2,Ruipeng Li1, Guy O. Ngongang Ndjawa1,Eric T. Hoke2, Alberto Salleo2, Mark E. Thompson3, Michael D. McGehee2,*andAram Amassian, "Solar Cells: Re-evaluating the Role of Sterics and Electronic Coupling in Determining the Open-Circuit Voltage of Organic Solar Cells (Adv. Mater. 42/2013)", 2013.
Keywords:
organic photovoltaic;open-circuit voltage;electronic coupling;charge-transfer state;organic solar cell
  • Louis A. Perez , Kang Wei Chou , John A. Love , Thomas S. van der Poll , Detlef-M. Smilgies , Thuc-Quyen Nguyen , Edward J. Kramer , Aram Amassian ,* and Guillermo C. Bazan *​"Solvent Additive Effects on Small Molecule Crystallization in Bulk Heterojunction Solar Cells Probed During Spin Casting", Advanced Materials Volume 25, Issue 44, pages 6380–6384, November 26, 2013​.
Keywords:
organic photovoltaics (OPV);bulk heterojunction (BHJ) solar cells;solution processable small molecules;solvent additive processing;thin film morphology
  • Kenneth R. Graham , Patrick Erwin , Dennis Nordlund , Koen Vandewal , Ruipeng Li , Guy O. Ngongang Ndjawa , Eric T. Hoke , Alberto Salleo , Mark Thompson , Michael D. McGehee ,* and Aram Amassian *​, "Re-evaluating the Role of Sterics and Electronic Coupling in Determining the Open-Circuit Voltage of Organic Solar Cells", Advanced Materials Volume 25, Issue 42, pages 6076–6082, November 13, 2013.​
Keywords:
organic photovoltaic;open-circuit voltage;electronic coupling;charge-transfer state;organic solar cell
  • Y. Saeeda, K. Zhaoa, N. Singha, R. Li a, J.E. Anthony b, A. Amassiana, U. Schwingenschlögl a,"Influence of substitution on the optical properties of functionalized pentacene monomers and crystals: Experiment and theory", Chemical Physics Letters Volume 585, 14 October 2013, Pages 95–100, 2013. 

Keywords:
Functionalized pentacene molecules,
  • Yen-Hung Lin , Hendrik Faber , Kui Zhao , Qingxiao Wang , Aram Amassian , Martyn McLachlan , and Thomas D. Anthopoulos *"High-Performance ZnO Transistors Processed Via an Aqueous Carbon-Free Metal Oxide Precursor Route at Temperatures Between 80–180 °C", 
Keywords:
zinc oxide;thin film transistors;transparent electronics;plastic electronics;solution processing;UV conversion
Keywords:
donor−supply electrode; colloidal quantum dot; photovoltaics; solar cells; atomic layer deposition; charge-transfer doping
  • Graham H. Careya1, Kang W. Choua2, Buyi Yana2, Ahmad R. Kirmania2, Aram Amassiana2 and Edward H. Sargenta3 c1, "Materials processing strategies for colloidal quantum dot solar cells: advances, present-day limitations, and pathways to improvement", MRS Communications / Volume 3 / Issue 02 / 2013, pp 83-90, 2013.

Keywords:
Colloidal quantum dot photovoltaic devices.
      1. Kang Wei Chou1
      2. Buyi Yan1
      3. Ruipeng Li1,
      4. Er Qiang Li1
      5. Kui Zhao1
      6. Dalaver H. Anjum1
      7. Steven Alvarez2
      8. Robert Gassaway2,
      9. Alan Biocca2
      10. Sigurdur T. Thoroddsen1,
      11. Alexander Hexemer2 and
      12. Aram Amassian,"
      13. Solar Cells: Spin-Cast Bulk Heterojunction Solar Cells: A Dynamical Investigation (Adv. Mater. 13/2013)"​,  Advanced Materials Special Issue: Organic Electronics Volume 25Issue 13page 1805April 4, 2013​​. 

Keywords:
organic photovoltaics;bulk heterojunction;spin casting;time-resolved grazing incidence small and wide angle x-ray scattering;in situ spectral reflectometry
  • Kang Wei Chou , Buyi Yan , Ruipeng Li , Er Qiang Li , Kui Zhao , Dalaver H. Anjum , Steven Alvarez , Robert Gassaway , Alan Biocca , Sigurdur Thoroddsen , Alexander Hexemer , and Aram Amassian * "Spin-Cast Bulk Heterojunction Solar Cells: A Dynamical Investigation", Advanced MaterialsSpecial Issue: Organic Electronics Volume 25Issue 13pages 1923–1929April 4, 2013. 
Keywords:
organic photovoltaics;bulk heterojunction;spin casting;time-resolved grazing incidence small and wide angle x-ray scattering;in situ spectral reflectometr
Keywords:
Colloidal quantum dot (CQD), solution processing, photovoltaic , hybrid passivated CQD.
    1. Ruipeng Li1
    2. Hadayat Ullah Khan1
    3. Marcia M. Payne3
    4. Detlef-M. Smilgies2
    5. John E. Anthony3 and
    6. Aram Amassian, " Field-Effect Transistors: Heterogeneous Nucleation Promotes Carrier Transport in Solution-Processed Organic Field-Effect Transistors". 
Keywords:
solution processing;thin-film growth;organic field-effect transistors;in situ characterization;Avrami model
Keywords:
organic electronicsorganic thin film transistorssolvent vapor annealingquartz crystal microbalance with dissipationTIPS-pentacenesolution processing
  • 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
  • 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”, Adv. Mater. 2013, DOI: 10.1002/adma.201202758.
Keywords:
wide-bandgap p-type semiconductors;transparent transistors;copper thiocyanate;solution processing
  • Detlef-M. Smilgies*, 1, Ruipeng Li2, Gaurav Giri3, Kang Wei Chou2, Ying Diao3, Zhenan Bao**, 3, and Aram Amassian***, 2​, "Look fast: Crystallization of conjugated molecules during solution shearing probed in-situ and in real time by X-ray scattering, physica status solidi (RRL) - Rapid Research Letters 

     

Keywords:
organic semiconductors;solution processing;conjugated molecules;X-ray scattering;crystallization
  • Jonathan A. Bartelt , Zach M. Beiley , Eric T. Hoke , William R. Mateker , Jessica D. Douglas , Brian A. Collins , John R. Tumbleston , Kenneth R. Graham , Aram Amassian , Harald Ade , Jean M. J. Fréchet , Michael F. Toney , and Michael D. McGehee *​, "The Importance of Fullerene Percolation in the Mixed Regions of Polymer–Fullerene Bulk Heterojunction Solar Cells".
Keywords:
organic electronics;photovoltaic devices;solar cells;bulk heterojunctions;charge transport
  • 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
  • D.‐M Smilgies, R. Li, G. Giri, K. W. Chou, Y. Diao, Z. Bao, A. Amassian, “Look fast: Crystallization of conjugated molecules during solution shearing probed in-situ and in real time by X-ray scattering”, Phys. Status Solidi RRL (2012), DOI: 10.1002/pssr.201206507. (front cover)
Keywords:
organic semiconductors;solution processing;conjugated molecules;X-ray scattering;crystallization
  • 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”, J. Am. Chem. Soc. 134, 16532-16535 (2012). (communication).
Keywords:
conjugated copolymer,high-mobility organic field-effect transistors,
  • ​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”, Adv. Energy Mater. 2012, DOI:10.1002/aenm.201200637. 

Keywords:
organic electronics; photovoltaic devices; solar cells; bulk heterojunctions; charge transport
  • 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 Nanotech. 7, 577-582 (2012).
Keywords:
Electronic properties and devices, Nanoparticles, Photonic structures and devices, Synthesis and processing
  • 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”, Adv. Mater. 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
  • Li, R., Khan, H. U., Payne, M. M., Smilgies, D.-M., Anthony, J. E. and Amassian, A. (2012), Heterogeneous Nucleation Promotes Carrier Transport in Solution-Processed Organic Field-Effect Transistors. Adv. Funct. Mater.. doi: 10.1002/adfm.201201264​
Keywords:
solution processing;thin-film growth;organic field-effect transistors;in situ characterization;Avrami model