Imperial College London

ProfessorThomasAnthopoulos

Faculty of Natural SciencesDepartment of Physics

Visiting Professor
 
 
 
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Contact

 

+44 (0)20 7594 6669thomas.anthopoulos Website

 
 
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Assistant

 

Mrs Carolyn Dale +44 (0)20 7594 7579

 
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Location

 

1111Blackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Publication Type
Year
to

323 results found

Andernach RE, Rossbauer S, Ashraf RS, Faber H, Anthopoulos TD, McCulloch I, Heeney M, Bronstein HAet al., 2015, Conjugated Polymer-Porphyrin Complexes for Organic Electronics, CHEMPHYSCHEM, Vol: 16, Pages: 1223-1230, ISSN: 1439-4235

Journal article

Pitsalidis C, Pappa A-M, Hunter S, Payne MM, Anthony JE, Anthopoulos TD, Logothetidis Set al., 2015, Electrospray-Processed Soluble Acenes toward the Realization of High-Performance Field-Effect Transistors, ACS APPLIED MATERIALS & INTERFACES, Vol: 7, Pages: 6496-6504, ISSN: 1944-8244

Journal article

Petti L, Faber H, Muenzenrieder N, Cantarella G, Patsalas PA, Troester G, Anthopoulos TDet al., 2015, Low-temperature spray-deposited indium oxide for flexible thin-film transistors and integrated circuits, Applied Physics Letters, Vol: 106, ISSN: 1077-3118

Indium oxide (In2O3) films were deposited by ultrasonic spray pyrolysis in ambient air and incorporated into bottom-gate coplanar and staggered thin-film transistors. As-fabricated devices exhibited electron-transporting characteristics with mobility values of 1 cm2V−1s−1 and 16 cm2V−1s−1 for coplanar and staggered architectures, respectively. Integration of In2O3 transistors enabled realization of unipolar inverters with high gain (5.3 V/V) and low-voltage operation. The low temperature deposition (≤250 °C) of In2O3 also allowed transistor fabrication on free-standing 50 μm-thick polyimide foils. The resulting flexible In2O3 transistors exhibit good characteristics and remain fully functional even when bent to tensile radii of 4 mm.

Journal article

Labram JG, Lin Y-H, Zhao K, Li R, Thomas SR, Semple J, Androulidaki M, Sygellou L, McLachlan M, Stratakis E, Amassian A, Anthopoulos TDet al., 2015, Signatures of Quantized Energy States in Solution-Processed Ultrathin Layers of Metal-Oxide Semiconductors and Their Devices, Advanced Functional Materials, Vol: 25, Pages: 1727-1736, ISSN: 1616-3028

Physical phenomena such as energy quantization have to-date been overlooked in solution-processed inorganic semiconducting layers, owing to heterogeneity in layer thickness uniformity unlike some of their vacuum-deposited counterparts. Recent reports of the growth of uniform, ultrathin (<5 nm) metal-oxide semiconductors from solution, however, have potentially opened the door to such phenomena manifesting themselves. Here, a theoretical framework is developed for energy quantization in inorganic semiconductor layers with appreciable surface roughness, as compared to the mean layer thickness, and present experimental evidence of the existence of quantized energy states in spin-cast layers of zinc oxide (ZnO). As-grown ZnO layers are found to be remarkably continuous and uniform with controllable thicknesses in the range 2–24 nm and exhibit a characteristic widening of the energy bandgap with reducing thickness in agreement with theoretical predictions. Using sequentially spin-cast layers of ZnO as the bulk semiconductor and quantum well materials, and gallium oxide or organic self-assembled monolayers as the barrier materials, two terminal electronic devices are demonstrated, the current–voltage characteristics of which resemble closely those of double-barrier resonant-tunneling diodes. As-fabricated all-oxide/hybrid devices exhibit a characteristic negative-differential conductance region with peak-to-valley ratios in the range 2–7.

Journal article

Faber H, Lin Y-H, Thomas SR, Zhao K, Pliatsikas N, McLachlan MA, Amassian A, Patsalas PA, Anthopoulos TDet al., 2015, Indium Oxide Thin-Film Transistors Processed at Low Temperature via Ultrasonic Spray Pyrolysis, ACS APPLIED MATERIALS & INTERFACES, Vol: 7, Pages: 782-790, ISSN: 1944-8244

Journal article

Paterson AF, Anthopoulos TD, 2015, Organic blend semiconductors and transistors with hole mobility exceeding 10 cm2/Vs, Conference on Organic Field-Effect Transistors XIV; and Organic Sensors and Bioelectronics VIII, Publisher: SPIE-INT SOC OPTICAL ENGINEERING, ISSN: 0277-786X

Conference paper

Singh R, Pagona G, Gregoriou VG, Tagmatarchis N, Toliopoulos D, Han Y, Fei Z, Katsouras A, Avgeropoulos A, Anthopoulos TD, Heeney M, Keivanidis PE, Chochos CLet al., 2015, The impact of thienothiophene isomeric structures on the optoelectronic properties and photovoltaic performance in quinoxaline based donor-acceptor copolymers, POLYMER CHEMISTRY, Vol: 6, Pages: 3098-3109, ISSN: 1759-9954

Journal article

Hermerschmidt F, Kalogirou AS, Min J, Zissimou GA, Tuladhar SM, Ameri T, Faber H, Itskos G, Choulis SA, Anthopoulos TD, Bradley DDC, Nelson J, Brabec CJ, Koutentis PAet al., 2015, 4H-1,2,6-Thiadiazin-4-one-containing small molecule donors and additive effects on their performance in solution-processed organic solar cells, JOURNAL OF MATERIALS CHEMISTRY C, Vol: 3, Pages: 2358-2365, ISSN: 2050-7526

Journal article

Steiner F, Foster S, Losquin A, Labram J, Anthopoulos TD, Frost JM, Nelson Jet al., 2015, Distinguishing the influence of structural and energetic disorder on electron transport in fullerene multi-adducts, MATERIALS HORIZONS, Vol: 2, Pages: 113-119, ISSN: 2051-6347

Journal article

Casey A, Han Y, Fei Z, White AJP, Anthopoulos TD, Heeney Met al., 2015, Cyano substituted benzothiadiazole: a novel acceptor inducing n-type behaviour in conjugated polymers, JOURNAL OF MATERIALS CHEMISTRY C, Vol: 3, Pages: 265-275, ISSN: 2050-7526

Journal article

Bronstein HA, Falon K, Yaacobi-Gross N, Ashraf RS, McCulloch I, Anthopoulos TDet al., 2015, Novel nature-inspired conjugated polymers for high performance transistors and solar cells, Conference on Organic Field-Effect Transistors XIV; and Organic Sensors and Bioelectronics VIII, Publisher: SPIE-INT SOC OPTICAL ENGINEERING, ISSN: 0277-786X

Conference paper

Perumal A, Faber H, Yaacobi-Gross N, Pattanasattayavong P, Burgess C, Jha S, McLachlan MA, Stavrinou PN, Anthopoulos TD, Bradley DDCet al., 2015, High-Efficiency, Solution-Processed, Multilayer Phosphorescent Organic Light-Emitting Diodes with a Copper Thiocyanate Hole-Injection/Hole-Transport Layer, ADVANCED MATERIALS, Vol: 27, Pages: 93-100, ISSN: 0935-9648

Journal article

Lin YH, Zhao K, Li R, Amassian A, Anthopoulos TDet al., 2015, Exploring low-dimensional charge transport phenomena in solution-processed metal oxide superlattice transistors, Pages: 1736-1739, ISSN: 1883-2490

© 2015 Proceedings of the International Display Workshops. All rights reserved. We report on metal oxide superlattice systems grown from solution and their use in high electron mobility transistors. On the basis of temperature-dependent electron transport measurements and carrier distribution evaluation, we argue that the enhanced performance arises from the presence of 2-dimensional electron gaslike systems formed at the oxide-oxide heterointerfaces.

Conference paper

Lin YH, Zhao K, Li R, Amassian A, Anthopoulos TDet al., 2015, Exploring low-dimensional charge transport phenomena in solution-processed metal oxide superlattice transistors, Pages: 301-304, ISSN: 1883-2490

© 2015 Society for Information Display. We report on metal oxide superiattice systems grown from solution and their use in high electron mobility transistors. On the basis of temperature-dependent electron transport measurements and carrier distribution evaluation, we argue that the enhanced performance arises from the presence of 2-dimensional electron gas-like systems formed at the oxide-oxide heterointerfaces.

Conference paper

Jeremy S, Simon H, Anthopoulos TP, 2015, Organic blend semiconductors for high performance thin-film transistor applications, Pages: 559-561, ISSN: 1883-2490

© 2015 Society for Information Display. We report the development of p-channet organic small-molecule/polymer blend-based thin-film transistors with high hole mobility. Emphasis is placed on the use of molecular p-dopants as a mean to improve the transistors' operating characteristics as well as the operating frequency of integrated circuits such as multi-stage ring oscillators.

Conference paper

Smith J, Hunter S, Anthopoulos TP, 2015, Organic blend semiconductors for high performance thin-film transistor applications, Pages: 47-49, ISSN: 1883-2490

© 2015 Society for Information Display. We report the development of p-channel organic small-molecule/polymer blend-based thin-film transistors with high hole mobility. Emphasis is placed on the use of molecular p-dopants as a mean to improve the transistors' operating characteristics as well as the operating frequency of integrated circuits such as multi-stage ring oscillators.

Conference paper

Bottacchi F, 2014, Integration of solution-processed (7,5) SWCNTs with sputtered and spray-coated metal oxides for flexible complementary inverters, Technical Digest - International Electron Devices Meeting, Pages: 26.4.1-26.4.1, ISSN: 0163-1918

Journal article

Fei Z, Ashraf RS, Han Y, Wang S, Yau CP, Tuladhar PS, Anthopoulos TD, Chabinyc ML, Heeney Met al., 2014, Diselenogermole as a novel donor monomer for low band gap polymers, Journal of Materials Chemistry A, Vol: 3, Pages: 1986-1994, ISSN: 2050-7496

Journal article

Rossbauer S, Muller C, Anthopoulos TD, 2014, Comparative Study of the N-Type Doping Efficiency in Solution-processed Fullerenes and Fullerene Derivatives, ADVANCED FUNCTIONAL MATERIALS, Vol: 24, Pages: 7116-7124, ISSN: 1616-301X

Journal article

Shoaee S, Mehraeen S, Labram JG, Bredas J-L, Bradley DDC, Coropceanu V, Anthopoulos TD, Durrant JRet al., 2014, Correlating Non-Geminate Recombination with Film Structure: A Comparison of Polythiophene: Fullerene Bilayer and Blend Films, JOURNAL OF PHYSICAL CHEMISTRY LETTERS, Vol: 5, Pages: 3669-3676, ISSN: 1948-7185

Journal article

Fei Z, Pattanasattayavong P, Han Y, Schroeder BC, Yan F, Kline RJ, Anthopoulos TD, Heeney Met al., 2014, Influence of Side-Chain Regiochemistry on the Transistor Performance of High-Mobility, All-Donor Polymers, JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Vol: 136, Pages: 15154-15157, ISSN: 0002-7863

Journal article

Hunter S, Chen J, Anthopoulos TD, 2014, Microstructural Control of Charge Transport in Organic Blend Thin-Film Transistors, ADVANCED FUNCTIONAL MATERIALS, Vol: 24, Pages: 5969-5976, ISSN: 1616-301X

Journal article

Yaacobi-Gross N, Treat ND, Pattanasattayavong P, Faber H, Perumal AK, Stingelin N, Bradley DDC, Stavrinou PN, Heeney M, Anthopoulos TDet al., 2014, High-Efficiency Organic Photovoltaic Cells Based on the Solution-Processable Hole Transporting Interlayer Copper Thiocyanate (CuSCN) as a Replacement for PEDOT:PSS, Advanced Energy Materials, Vol: 5, ISSN: 1614-6840

The use of copper thiocyanate (CuSCN) as a universal solution-processable and highly transparent hole-transporting layer in organic bulk-heterojunction photo­voltaic cells is demonstrated. When CuSCN is employed as a replacement for the commonly used poly(3,4-ethyl­­enedioxythiophene):polystyrenesulfonate (PEDOT:PSS), organic solar cells with maximum power conversion efficiency of 8%, are realized; this value is 1.27 times higher than that for optimized control cells based on PEDOT:PSS.

Journal article

Thomas SR, Adamopoulos G, Lin Y-H, Faber H, Sygellou L, Stratakis E, Pliatsikas N, Patsalas PA, Anthopoulos TDet al., 2014, High electron mobility thin-film transistors based on Ga2O3 grown by atmospheric ultrasonic spray pyrolysis at low temperatures, APPLIED PHYSICS LETTERS, Vol: 105, ISSN: 0003-6951

Journal article

Kanimozhi C, Yaacobi-Gross N, Burnett EK, Briseno AL, Anthopoulos TD, Salzner U, Patil Set al., 2014, Use of side-chain for rational design of n-type diketopyrrolopyrrole-based conjugated polymers: what did we find out?, PHYSICAL CHEMISTRY CHEMICAL PHYSICS, Vol: 16, Pages: 17253-17265, ISSN: 1463-9076

Journal article

Shaw JE, Stavrinou PN, Anthopoulos TD, 2014, High-speed scanning thermal lithography for nanostructuring of electronic devices, NANOSCALE, Vol: 6, Pages: 5813-5819, ISSN: 2040-3364

Journal article

Kanimozhi C, Naik M, Yaacobi-Gross N, Burnett EK, Briseno AL, Anthopoulos TD, Patil Set al., 2014, Controlling Conformations of Diketopyrrolopyrrole-Based Conjugated Polymers: Role of Torsional Angle, JOURNAL OF PHYSICAL CHEMISTRY C, Vol: 118, Pages: 11536-11544, ISSN: 1932-7447

Journal article

Dhar J, Kanimozhi C, Yaccobi-Gross N, Anthopoulos TD, Salzner U, Patil Set al., 2014, Selenium in Diketopyrrolopyrrole-based Polymers: Influence on Electronic Properties and Charge Carrier Mobilities, ISRAEL JOURNAL OF CHEMISTRY, Vol: 54, Pages: 817-827, ISSN: 0021-2148

Journal article

Schroeder BC, Rossbauer S, Kline RJ, Biniek L, Watkins SE, Anthopoulos TD, McCulloch I, Nielsen CBet al., 2014, Benzotrithiophene Copolymers: Influence of Molecular Packing and Energy Levels on Charge Carrier Mobility, MACROMOLECULES, Vol: 47, Pages: 2883-2890, ISSN: 0024-9297

Journal article

Yau CP, Fei Z, Ashraf RS, Shahid M, Watkins SE, Pattanasattayavong P, Anthopoulos TD, Gregoriou VG, Chochos CL, Heeney Met al., 2014, Influence of the Electron Deficient Co-Monomer on the Optoelectronic Properties and Photovoltaic Performance of Dithienogermole-based Co-Polymers, ADVANCED FUNCTIONAL MATERIALS, Vol: 24, Pages: 678-687, ISSN: 1616-301X

Journal article

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