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• Journal article
  Kosco J, Bidwell M, Cha H, Martin T, Howells CT, Sachs M, Anjum DH, Gonzalez Lopez S, Zou L, Wadsworth A, Zhang W, Zhang L, Tellam J, Sougrat R, Laquai F, DeLongchamp DM, Durrant JR, McCulloch Iet al., 2020,

  Enhanced photocatalytic hydrogen evolution from organic semiconductor heterojunction nanoparticles

  , Nature Materials, Vol: 19, Pages: 559-565, ISSN: 1476-1122

  Photocatalysts formed from a single organic semiconductor typically suffer from inefficient intrinsic charge generation, which leads to low photocatalytic activities. We demonstrate that incorporating a heterojunction between a donor polymer (PTB7-Th) and non-fullerene acceptor (EH-IDTBR) in organic nanoparticles (NPs) can result in hydrogen evolution photocatalysts with greatly enhanced photocatalytic activity. Control of the nanomorphology of these NPs was achieved by varying the stabilizing surfactant employed during NP fabrication, converting it from a core–shell structure to an intermixed donor/acceptor blend and increasing H2 evolution by an order of magnitude. The resulting photocatalysts display an unprecedentedly high H2 evolution rate of over 60,000 µmol h−1 g−1 under 350 to 800 nm illumination, and external quantum efficiencies over 6% in the region of maximum solar photon flux.

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• Journal article
  Giovannitti A, Rashid RB, Thiburce Q, Paulsen BD, Cendra C, Thorley K, Moia D, Mefford JT, Hanifi D, Weiyuan D, Moser M, Salleo A, Nelson J, McCulloch I, Rivnay Jet al., 2020,

  Energetic control of redox-active polymers toward safe organic Bioelectronic materials

  , Advanced Materials, Vol: 32, ISSN: 0935-9648

  Avoiding faradaic side reactions during the operation of electrochemical devices is important to enhance the device stability, to achieve low power consumption, and to prevent the formation of reactive side‐products. This is particularly important for bioelectronic devices, which are designed to operate in biological systems. While redox‐active materials based on conducting and semiconducting polymers represent an exciting class of materials for bioelectronic devices, they are susceptible to electrochemical side‐reactions with molecular oxygen during device operation. Here, electrochemical side reactions with molecular oxygen are shown to occur during organic electrochemical transistor (OECT) operation using high‐performance, state‐of‐the‐art OECT materials. Depending on the choice of the active material, such reactions yield hydrogen peroxide (H2O2), a reactive side‐product, which may be harmful to the local biological environment and may also accelerate device degradation. A design strategy is reported for the development of redox‐active organic semiconductors based on donor–acceptor copolymers that prevents the formation of H2O2 during device operation. This study elucidates the previously overlooked side‐reactions between redox‐active conjugated polymers and molecular oxygen in electrochemical devices for bioelectronics, which is critical for the operation of electrolyte‐gated devices in application‐relevant environments.

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• Journal article
  Lin Y, Firdaus Y, Nugraha MI, Liu F, Karuthedath S, Emwas A-H, Zhang W, Seitkhan A, Neophytou M, Faber H, Yengel E, McCulloch I, Tsetseris L, Laquai F, Anthopoulos TDet al., 2020,

  17.1% Efficient Single-Junction Organic Solar Cells Enabled by n-Type Doping of the Bulk-Heterojunction

  , ADVANCED SCIENCE, Vol: 7
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  • Citations: 205
• Journal article
  Ohayon D, Nikiforidis G, Savva A, Giugni A, Wustoni S, Palanisamy T, Chen X, Maria IP, Di Fabrizio E, Costa PMFJ, McCulloch I, Inal Set al., 2020,

  Biofuel powered glucose detection in bodily fluids with an n-type conjugated polymer

  , NATURE MATERIALS, Vol: 19, Pages: 456-+, ISSN: 1476-1122
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  • Citations: 238
• Journal article
  Savva A, Hallani R, Cendra C, Surgailis J, Hidalgo TC, Wustoni S, Sheelamanthula R, Chen X, Kirkus M, Giovannitti A, Salleo A, McCulloch I, Inal Set al., 2020,

  Balancing Ionic and Electronic Conduction for High-Performance Organic Electrochemical Transistors

  , ADVANCED FUNCTIONAL MATERIALS, Vol: 30, ISSN: 1616-301X
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  • Citations: 201
• Journal article
  Waldrip M, Iqbal HF, Wadsworth A, McCulloch I, Jurchescu ODet al., 2020,

  Organic thin-film transistors with flame-annealed contacts

  , FLEXIBLE AND PRINTED ELECTRONICS, Vol: 5, ISSN: 2058-8585
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  • Citations: 5
• Journal article
  Lv J, Feng Y, Fu J, Gao J, Singh R, Kumar M, Kim M, Tang H, Lu S, Zhang W, McCulloch I, Li J, Kan Zet al., 2020,

  Energetic Disorder and Activation Energy in Efficient Ternary Organic Solar Cells with Nonfullerene Acceptor Eh-IDTBR as the Third Component

  , SOLAR RRL, Vol: 4, ISSN: 2367-198X
  • Author Web Link
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  • Citations: 57
• Journal article
  Bronstein H, Nielsen CB, Schroeder BC, McCulloch Iet al., 2020,

  The role of chemical design in the performance of organic semiconductors

  , NATURE REVIEWS CHEMISTRY, Vol: 4, Pages: 66-77
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  • Citations: 630
• Journal article
  Hamid Z, Wadsworth A, Rezasoltani E, Holliday S, Azzouzi M, Neophytou M, Guilbert AAY, Dong Y, Little MS, Mukherjee S, Herzing AA, Bristow H, Kline RJ, DeLongchamp DM, Bakulin AA, Durrant JR, Nelson J, McCulloch Iet al., 2020,

  Influence of Polymer Aggregation and Liquid Immiscibility on Morphology Tuning by Varying Composition in PffBT4T-2DT/Nonfullerene Organic Solar Cells

  , ADVANCED ENERGY MATERIALS, Vol: 10, ISSN: 1614-6832
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• Journal article
  Wadsworth A, Chen H, Thorley KJ, Cendra C, Nikolka M, Bristow H, Moser M, Salleo A, Anthopoulos TD, Sirringhaus H, McCulloch Iet al., 2020,

  Modification of Indacenodithiophene-Based Polymers and Its Impact on Charge Carrier Mobility in Organic Thin-Film Transistors

  , JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Vol: 142, Pages: 652-664, ISSN: 0002-7863
  • Author Web Link
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  • Citations: 134
• Journal article
  Keivanidis PE, Itskos G, Kan Z, Aluicio-Sarduy E, Goudarzi H, Kamm V, Laquai F, Zhang W, Brabec C, Floudas G, McCulloch Iet al., 2020,

  Afterglow Effects as a Tool to Screen Emissive Nongeminate Charge Recombination Processes in Organic Photovoltaic Composites

  , ACS APPLIED MATERIALS & INTERFACES, Vol: 12, Pages: 2695-2707, ISSN: 1944-8244
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  • Citations: 5
• Journal article
  Hallani RK, Moser M, Bristow H, Jenart MVC, Faber H, Neophytou M, Yarali E, Paterson AF, Anthopoulos TD, McCulloch Iet al., 2020,

  Low-Temperature Cross-Linking Benzocyclobutene Based Polymer Dielectric for Organic Thin Film Transistors on Plastic Substrates

  , JOURNAL OF ORGANIC CHEMISTRY, Vol: 85, Pages: 277-283, ISSN: 0022-3263
  • Author Web Link
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  • Citations: 26
• Journal article
  Troughton J, Neophytou M, Gasparini N, Seitkhan A, Isikgor FH, Song X, Lin Y-H, Liu T, Faber H, Yengel E, Kosco J, Oszajca MF, Hartmeier B, Rossier M, Luechinger NA, Tsetseris L, Snaith H, De Wolf S, Anthopoulos T, McCulloch I, Baran Det al., 2020,

  A universal solution processed interfacial bilayer enabling ohmic contact in organic and hybrid optoelectronic devices

  , ENERGY & ENVIRONMENTAL SCIENCE, Vol: 13, Pages: 268-276, ISSN: 1754-5692
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  • Citations: 56
• Journal article
  Pace NA, Korovina N, Clikeman TT, Holliday S, Granger DB, Carroll GM, Nanayakkara SU, Anthony JE, McCulloch I, Strauss SH, Boltalina O, Johnson JC, Rumbles G, Reid OGet al., 2020,

  Slow charge transfer from pentacene triplet states at the Marcus optimum

  , NATURE CHEMISTRY, Vol: 12, Pages: 63-70, ISSN: 1755-4330
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  • Citations: 42
• Journal article
  Rekab W, Leydecker T, Hou L, Chen H, Kirkus M, Cendra C, Herder M, Hecht S, Salleo A, McCulloch I, Orgiu E, Samori Pet al., 2020,

  Phototuning Selectively Hole and Electron Transport in Optically Switchable Ambipolar Transistors

  , ADVANCED FUNCTIONAL MATERIALS, Vol: 30, ISSN: 1616-301X
  • Cite
  • Citations: 28

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