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• Journal article
  Kirchartz T, Nelson J, 2014,

  Device Modelling of Organic Bulk Heterojunction Solar Cells

  , MULTISCALE MODELLING OF ORGANIC AND HYBRID PHOTOVOLTAICS, Vol: 352, Pages: 279-324, ISSN: 0340-1022
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• Journal article
  Vaissier V, Mosconi E, Moia D, Pastore M, Frost JM, De Angelis F, Barnes PRF, Nelson Jet al., 2014,

  Effect of Molecular Fluctuations on Hole Diffusion within Dye Monolayers

  , CHEMISTRY OF MATERIALS, Vol: 26, Pages: 4731-4740, ISSN: 0897-4756
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  • Citations: 21
• Book chapter
  Ekins-Daukes NJ, Nelson J, 2014,

  Quantum Well Solar Cells

  , Clean Electricity from Photovoltaics, Editors: Green, Archer, Publisher: Imperial College Press, ISBN: 9781848167674

  The second edition of Clean Electricity from Photovoltaics, first published in 2001, provides an updated account of the underlying science, technology and market prospects for photovoltaics.

  • Abstract
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• Journal article
  Dattani R, Bannock JH, Fei Z, MacKenzie RCI, Guilbert AAY, Vezie MS, Nelson J, de Mello JC, Heeney M, Cabral JT, Nedoma AJet al., 2014,

  A general mechanism for controlling thin film structures in all-conjugated block copolymer: fullerene blends

  , JOURNAL OF MATERIALS CHEMISTRY A, Vol: 2, Pages: 14711-14719, ISSN: 2050-7488
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• Journal article
  Martinez L, Higuchi S, MacLachlan AJ, Stavrinadis A, Miller NC, Diedenhofen SL, Bernechea M, Sweetnam S, Nelson J, Haque SA, Tajima K, Konstantatos Get al., 2014,

  Improved electronic coupling in hybrid organic-inorganic nanocomposites employing thiol-functionalized P3HT and bismuth sulfide nanocrystals

  , Nanoscale, Vol: 6, Pages: 10018-10026, ISSN: 2040-3372

  In this study, we employ a thiol-functionalized polymer (P3HT-SH) as a leverage to tailor the nanomorphology and electronic coupling in polymer–nanocrystal composites for hybrid solar cells. The presence of the thiol functional group allows for a highly crystalline semiconducting polymer film at low thiol content and allows for improved nanomorphologies in hybrid organic–inorganic systems when employing non-toxic bismuth sulfide nanocrystals. The exciton dissociation efficiency and carrier dynamics at this hybrid heterojunction are investigated through photoluminescence quenching and transient absorption spectroscopy measurements, revealing a larger degree of polaron formation when P3HT-SH is employed, suggesting an increased electronic interaction between the metal chalcogenide nanocrystals and the thiol-functionalized P3HT. The fabricated photovoltaic devices show 15% higher power conversion efficiencies as a result of the improved nanomorphology and better charge transfer mechanism together with the higher open circuit voltages arising from the deeper energy levels of P3HT-SH.

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• Journal article
  Xu W, Zhang X, Hu Q, Zhao L, Teng X, Lai W-Y, Xia R, Nelson J, Huang W, Bradley DDCet al., 2014,

  Fluorene-based cathode interlayer polymers for high performance solution processed organic optoelectronic devices

  , ORGANIC ELECTRONICS, Vol: 15, Pages: 1244-1253, ISSN: 1566-1199
  • Author Web Link
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  • Citations: 35
• Journal article
  Emmott CJM, Ekins-Daukes NJ, Nelson J, 2014,

  Dynamic carbon mitigation analysis: the role of thin-film photovoltaics

  , ENERGY & ENVIRONMENTAL SCIENCE, Vol: 7, Pages: 1810-1818, ISSN: 1754-5692
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  • Citations: 15
• Journal article
  MacKenzie RCI, Goeritz A, Greedy S, von Hauff E, Nelson Jet al., 2014,

  Theory of Stark spectroscopy transients from thin film organic semiconducting devices

  , PHYSICAL REVIEW B, Vol: 89, ISSN: 2469-9950
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  • Citations: 12
• Journal article
  Few S, Frost JM, Kirkpatrick J, Nelson Jet al., 2014,

  Influence of Chemical Structure on the Charge Transfer State Spectrum of a Polymer:Fullerene Complex

  , JOURNAL OF PHYSICAL CHEMISTRY C, Vol: 118, Pages: 8253-8261, ISSN: 1932-7447
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  • Citations: 60
• Journal article
  MacLachlan AJ, O'Mahony FTF, Sudlow AL, Hill MS, Molloy KC, Nelson J, Haque SAet al., 2014,

  Solution- Processed Mesoscopic Bi2S3: Polymer Photoactive Layers

  , CHEMPHYSCHEM, Vol: 15, Pages: 1019-1023, ISSN: 1439-4235
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  • Citations: 30
• Journal article
  Deledalle F, Shakya Tuladhar P, Nelson J, Durrant JR, Kirchartz Tet al., 2014,

  Understanding the Apparent Charge Density Dependence of Mobility and Lifetime in Organic Bulk Heterojunction Solar Cells

  , The Journal of Physical Chemistry C, Vol: 118, Pages: 8837-8842, ISSN: 1932-7447
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• Journal article
  Abramavicius V, Vithanage DA, Devizis A, Infahsaeng Y, Bruno A, Foster S, Keivanidis PE, Abramavicius D, Nelson J, Yartsev A, Sundstroem V, Gulbinas Vet al., 2014,

  Carrier motion in as-spun and annealed P3HT:PCBM blends revealed by ultrafast optical electric field probing and Monte Carlo simulations

  , PHYSICAL CHEMISTRY CHEMICAL PHYSICS, Vol: 16, Pages: 2686-2692, ISSN: 1463-9076
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• Journal article
  Guilbert AAY, Frost JM, Agostinelli T, Pires E, Lilliu S, Macdonald JE, Nelson Jet al., 2014,

  Influence of Bridging Atom and Side Chains on the Structure and Crystallinity of Cyclopentadithiophene-Benzothiadiazole Polymers

  , CHEMISTRY OF MATERIALS, Vol: 26, Pages: 1226-1233, ISSN: 0897-4756
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  • Citations: 46
• Journal article
  Moia D, Vaissier V, Lopez-Duarte I, Torres T, Nazeeruddin MK, O'Regan BC, Nelson J, Barnes PRFet al., 2014,

  The reorganization energy of intermolecular hole hopping between dyes anchored to surfaces

  , CHEMICAL SCIENCE, Vol: 5, Pages: 281-290, ISSN: 2041-6520
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  • Citations: 59
• Journal article
  Hodgkiss J, Conboy G, Hutchings G, Higgins S, Galbraith I, Findlay N, Taylor R, Salle M, Zhang S, Frey G, Baldea I, Samuel I, Ebenhoch B, Wudl F, Turak A, Xu B, Angioni E, Venkatramani R, Lemmer U, Perepichka D, Kanibolotsky A, Skabara P, Wildman J, Zysman-Colman E, Bradley D, McCulloch I, McDouall J, Ponomarenko S, Nelson J, Kim J-Set al., 2014,

  Organic photovoltaics and energy: general discussion

  , FARADAY DISCUSSIONS, Vol: 174, Pages: 341-355, ISSN: 1359-6640
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  • Citations: 1
• Journal article
  Frost JM, Kirkpatrick J, Kirchartz T, Nelson Jet al., 2014,

  Parameter free calculation of the subgap density of states in poly(3-hexylthiophene)

  , FARADAY DISCUSSIONS, Vol: 174, Pages: 255-266, ISSN: 1359-6640
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  • Citations: 28
• Journal article
  Koch FPV, Rivnay J, Foster S, Mueller C, Downing JM, Buchaca-Domingo E, Westacott P, Yu L, Yuan M, Baklar M, Fei Z, Luscombe C, McLachlan MA, Heeney M, Rumbles G, Silva C, Salleo A, Nelson J, Smith P, Stingelin Net al., 2013,

  The impact of molecular weight on microstructure and charge transport in semicrystalline polymer Semiconductors poly(3-hexylthiophene), a model study

  , PROGRESS IN POLYMER SCIENCE, Vol: 38, Pages: 1978-1989, ISSN: 0079-6700
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  • Citations: 238
• Journal article
  Dibb GFA, Muth M-A, Kirchartz T, Engmann S, Hoppe H, Gobsch G, Thelakkat M, Blouin N, Tierney S, Carrasco-Orozco M, Durrant JR, Nelson Jet al., 2013,

  Influence of doping on charge carrier collection in normal and inverted geometry polymer: fullerene solar cells

  , SCIENTIFIC REPORTS, Vol: 3, ISSN: 2045-2322
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  • Citations: 64
• Journal article
  Bronstein H, Hurhangee M, Fregoso EC, Beatrup D, Soon YW, Huang Z, Hadipour A, Tuladhar PS, Rossbauer S, Sohn E-H, Shoaee S, Dimitrov SD, Frost JM, Ashraf RS, Kirchartz T, Watkins SE, Song K, Anthopoulos T, Nelson J, Rand BP, Durrant JR, McCulloch Iet al., 2013,

  Isostructural, Deeper Highest Occupied Molecular Orbital Analogues of Poly(3-hexylthiophene) for High-Open Circuit Voltage Organic Solar Cells

  , CHEMISTRY OF MATERIALS, Vol: 25, Pages: 4239-4249, ISSN: 0897-4756
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  • Citations: 53
• Journal article
  Ryan JW, Kirchartz T, Viterisi A, Nelson J, Palomares Eet al., 2013,

  Understanding the Effect of Donor Layer Thickness and a MoO₃ Hole Transport Layer on the Open-Circuit Voltage in Squaraine/C₆₀ Bilayer Solar Cells

  , JOURNAL OF PHYSICAL CHEMISTRY C, Vol: 117, Pages: 19866-19874, ISSN: 1932-7447
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  • Citations: 24
• Journal article
  Bruno A, Reynolds LX, Dyer-Snaith C, Nelson J, Haque SAet al., 2013,

  Determining the Exciton Diffusion Length in a Polyfluorene from Ultrafast Fluorescence Measurements of Polymer/Fullerene Blend Films

  , JOURNAL OF PHYSICAL CHEMISTRY C, Vol: 117, Pages: 19832-19838, ISSN: 1932-7447
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  • Citations: 45
• Journal article
  Hawks SA, Deledalle F, Yao J, Rebois DG, Li G, Nelson J, Yang Y, Kirchartz T, Durrant JRet al., 2013,

  Relating Recombination, Density of States, and Device Performance in an Efficient Polymer: Fullerene Organic Solar Cell Blend

  , ADVANCED ENERGY MATERIALS, Vol: 3, Pages: 1201-1209, ISSN: 1614-6832
  • Author Web Link
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  • Citations: 93
• Journal article
  James DT, Frost JM, Wade J, Nelson J, Kim J-Set al., 2013,

  Controlling Microstructure of Pentacene Derivatives by Solution Processing: Impact of Structural Anisotropy on Optoelectronic Properties

  , ACS NANO, Vol: 7, Pages: 7983-7991, ISSN: 1936-0851
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  • Citations: 84
• Journal article
  Nelson J, Emmott CJM, 2013,

  Can solar power deliver?

  , PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, Vol: 371, ISSN: 1364-503X
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  • Citations: 7
• Journal article
  Meager I, Ashraf RS, Mollinger S, Schroeder BC, Bronstein H, Beatrup D, Vezie MS, Kirchartz T, Salleo A, Nelson J, McCulloch Iet al., 2013,

  Photocurrent Enhancement from Diketopyrrolopyrrole Polymer Solar Cells through Alkyl-Chain Branching Point Manipulation

  , JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Vol: 135, Pages: 11537-11540, ISSN: 0002-7863
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  • Citations: 254
• Journal article
  Meager I, Ashraf RS, Mollinger S, Schroeder BC, Bronstein H, Beatrup D, Vezie MS, Kirchartz T, Salleo A, Nelson J, McCulloch Iet al., 2013,

  Photocurrent enhancement from diketopyrrolopyrrole polymer solar cells through alkyl-chain branching point manipulation.

  , J Am Chem Soc, Vol: 135, Pages: 11537-11540

  Systematically moving the alkyl-chain branching position away from the polymer backbone afforded two new thieno[3,2-b]thiophene-diketopyrrolopyrrole (DPPTT-T) polymers. When used as donor materials in polymer:fullerene solar cells, efficiencies exceeding 7% were achieved without the use of processing additives. The effect of the position of the alkyl-chain branching point on the thin-film morphology was investigated using X-ray scattering techniques and the effects on the photovoltaic and charge-transport properties were also studied. For both solar cell and transistor devices, moving the branching point further from the backbone was beneficial. This is the first time that this effect has been shown to improve solar cell performance. Strong evidence is presented for changes in microstructure across the series, which is most likely the cause for the photocurrent enhancement.

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• Journal article
  Vithanage DA, Devizis A, Abramavicius V, Infahsaeng Y, Abramavicius D, MacKenzie RCI, Keivanidis PE, Yartsev A, Hertel D, Nelson J, Sundstrom V, Gulbinas Vet al., 2013,

  Visualizing charge separation in bulk heterojunction organic solar cells

  , NATURE COMMUNICATIONS, Vol: 4, ISSN: 2041-1723
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  • Citations: 150
• Conference paper
  Durrant JR, Nelson J, Klug DR, 2013,

  Functionalising nanocrystalline TiO₂ films:: dye sensitised solar cells and optical biosensors

  , Materials Congress 2000, Publisher: TAYLOR & FRANCIS LTD, Pages: 1345-1348, ISSN: 0267-0836
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  • Citations: 16
• Journal article
  Kirchartz T, Deledalle F, Tuladhar PS, Durrant JR, Nelson Jet al., 2013,

  On the Differences between Dark and Light Ideality Factor in Polymer:Fullerene Solar Cells

  , JOURNAL OF PHYSICAL CHEMISTRY LETTERS, Vol: 4, Pages: 2371-2376, ISSN: 1948-7185
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  • Citations: 213
• Journal article
  MacKenzie RCI, Shuttle CG, Dibb GF, Treat N, von Hauff E, Robb MJ, Hawker CJ, Chabinyc ML, Nelson Jet al., 2013,

  Interpreting the Density of States Extracted from Organic Solar Cells Using Transient Photocurrent Measurements

  , JOURNAL OF PHYSICAL CHEMISTRY C, Vol: 117, Pages: 12407-12414, ISSN: 1932-7447
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  • Citations: 55

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