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• Journal article
  Athanasopoulos S, Kirkpatrick J, Martínez D, Frost JM, Foden CM, Walker AB, Nelson Jet al., 2007,

  Predictive study of charge transport in disordered semiconducting polymers

  , Nano letters, Vol: 7, Pages: 1785-1788
  • Cite
• Journal article
  Boucle J, Ravirajan P, Nelson J, 2007,

  Hybrid polymer-metal oxide thin films for photovoltaic applications

  , JOURNAL OF MATERIALS CHEMISTRY, Vol: 17, Pages: 3141-3153, ISSN: 0959-9428
  • Author Web Link
  • Cite
  • Citations: 296
• Journal article
  Sims M, Tuladhar S, Nelson J, Maher R, Campoy-Quiles M, Choulis S, Mairy M, Bradley D, Etchegoin P, Tregidgo C, Suhling K, Richards D, Massiot P, Nielsen C, Steinke Jet al., 2007,

  Correlation between microstructure and charge transport in poly(2,5-dimethoxy-p-phenylenevinylene) thin films

  , Vol: 76, ISSN: 1098-0121
  • Cite
• Journal article
  Kawano K, Pacios R, Poplavskyy D, Nelson J, Bradley DDC, Durrant JRet al., 2006,

  Degradation of organic solar cells due to air exposure

  , SOLAR ENERGY MATERIALS AND SOLAR CELLS, Vol: 90, Pages: 3520-3530, ISSN: 0927-0248
  • Author Web Link
  • Cite
  • Citations: 615
• Journal article
  Peiro AM, Colombo C, Doyle G, Nelson J, Mills A, Durrant JRet al., 2006,

  Photochemical reduction of oxygen adsorbed to nanocrystalline TiO₂ films:: A transient absorption and oxygen scavenging study of different TiO₂ preparations

  , JOURNAL OF PHYSICAL CHEMISTRY B, Vol: 110, Pages: 23255-23263, ISSN: 1520-6106
  • Author Web Link
  • Cite
  • Citations: 104
• Journal article
  Pacios R, Chatten AJ, Kawano K, Durrant JR, Bradley DDC, Nelson Jet al., 2006,

  Effects of photo-oxidation on the performance of poly[2-methoxy-5-(3′,7′-dimethyloctyloxy)-1,4-phenylene vinylene]:[6,6]-phenyl C₆₁-butyric acid methyl ester solar cells

  , ADVANCED FUNCTIONAL MATERIALS, Vol: 16, Pages: 2117-2126, ISSN: 1616-301X
  • Author Web Link
  • Cite
  • Citations: 97
• Journal article
  Cook S, Ohkita H, Durrant JR, Kim Y, Benson-Smith JJ, Nelson J, Bradley DDCet al., 2006,

  Singlet exciton transfer and fullerene triplet formation in polymer-fullerene blend films

  , APPLIED PHYSICS LETTERS, Vol: 89, ISSN: 0003-6951
  • Author Web Link
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  • Citations: 67
• Journal article
  Olson CL, Nelson J, Islam MS, 2006,

  Defect chemistry, surface structures, and lithium insertion in anatase TiO₂

  , JOURNAL OF PHYSICAL CHEMISTRY B, Vol: 110, Pages: 9995-10001, ISSN: 1520-6106
  • Author Web Link
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  • Citations: 164
• Journal article
  Ravirajan P, Peiró AM, Nazeeruddin MK, Graetzel M, Bradley DDC, Durrant JR, Nelson Jet al., 2006,

  Hybrid polymer/zinc oxide photovoltaic devices with vertically oriented ZnO nanorods and an amphiphilic molecular interface layer

  , JOURNAL OF PHYSICAL CHEMISTRY B, Vol: 110, Pages: 7635-7639, ISSN: 1520-6106
  • Author Web Link
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  • Citations: 493
• Journal article
  Kim Y, Cook S, Tuladhar SM, Choulis SA, Nelson J, Durrant JR, Bradley DDC, Giles M, Mcculloch I, Ha CS, Ree Met al., 2006,

  A strong regioregularity effect in self-organizing conjugated polymer films and high-efficiency polythiophene: fullerene solar cells

  , NATURE MATERIALS, Vol: 5, Pages: 197-203, ISSN: 1476-1122
  • Author Web Link
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  • Citations: 2167
• Journal article
  Khodabakhsh S, Sanderson BM, Nelson J, Jones TSet al., 2006,

  Using self-assembling dipole molecules to improve charge collection in molecular solar cells

  , ADVANCED FUNCTIONAL MATERIALS, Vol: 16, Pages: 95-100, ISSN: 1616-301X
  • Author Web Link
  • Cite
  • Citations: 229
• Journal article
  Frost JM, Cheynis F, Tuladhar SM, Nelson Jet al., 2006,

  Influence of polymer-blend morphology on charge transport and photocurrent generation in donor-acceptor polymer blends

  , Nano letters, Vol: 6, Pages: 1674-1681
  • Cite
• Conference paper
  Ballantyne AM, Wilson JS, Nelson J, Bradley DDC, Durrant JR, Heeney M, Duffy W, McCulloch Iet al., 2006,

  TOF mobility measurements in pristine films of P3HT: control of hole injection and influence of film thickness

  , Conference on Organic Photovoltaics VII, Publisher: SPIE-INT SOC OPTICAL ENGINEERING, ISSN: 0277-786X
  • Author Web Link
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  • Citations: 5
• Journal article
  Peiro AM, Ravirajan P, Govender K, Boyle DS, O'Brien P, Bradley DDC, Nelson J, Durrant JRet al., 2006,

  Hybrid polymer/metal oxide solar cells based on ZnO columnar structures

  , JOURNAL OF MATERIALS CHEMISTRY, Vol: 16, Pages: 2088-2096, ISSN: 0959-9428
  • Author Web Link
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  • Citations: 239
• Journal article
  Kreouzis T, Poplavskyy D, Tuladhar SM, Campoy- Quiles M, Nelson J, Campbell AJ, Bradley DDCet al., 2006,

  Temperature and field dependence of hole mobility in poly(9,9-dioctylfluorene)

  , Phys Rev B 73, Vol: 73, Pages: 235201-1-235201-15, ISSN: 1098-0121
  • Cite
• Journal article
  Peiró AM, Ravirajan P, Govender K, Boyle DS, O'Brien P, Bradley DDC, Nelson J, Durrant JRet al., 2005,

  The effect of zinc oxide nanostructure on the performance of hybrid polymer/zinc oxide solar cells

  , Proceedings of SPIE - The International Society for Optical Engineering, Vol: 5938, Pages: 1-8, ISSN: 0277-786X

  Solar cells fabricated from composites of conjugated polymers with nanostructured metal oxides are gaining interest on account of the stability, low cost and electron transport properties of metal oxides. Zinc oxide (ZnO)/polymer solar cells are promising compared to other metal oxide/polymer combinations, on account of the possibility of low temperature synthesis, as well as the potential for controlling interface morphology through simple processing from solution. Here, we focus on the effect of surface morphology of ZnO films on photovoltaic device performance. We have successfully grown ZnO nanorods standing almost perpendicular to the electrodes on a flat, dense ZnO "backing" layer. We studied structures consisting of a conjugated polymer in contact with three different types of ZnO layer: a flat ZnO backing layer alone; ZnO nanorods on a ZnO backing layer; and ZnO nanoparticles on a ZnO backing layer. We use scanning electron microscopy, steady state and transient absorption spectroscopies and photovoltaic device measurements to study the morphology, charge separation and recombination behaviour and device performance of the three types of structures. We find that charge recombination in the structures containing vertically aligned ZnO nanorods is remarkably slow, with a half life of over 1 ms, over two orders of magnitude slower than for randomly oriented ZnO nanoparticles. A photovoltaic device based on the nanorod structure which has been treated with an ambiphilic dye before deposition of poly(3-hexyl thiophene) (P3HT) polymer shows a power conversion efficiency over four times greater than for a similar device based on the nanoparticle structure. The best ZnO nanorods: P3HT device yields a short circuit current density of 2 mAcm -2 under AM 1.5 illumination (100mWem-2) and peak external quantum efficiency over 14%, resulting in a power conversion efficiency of 0.20%.

  • Abstract
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  • Citations: 6
• Journal article
  Kirkpatrick J, Nelson J, 2005,

  Theoretical study of the transfer integral and density of states in spiro-linked triphenylamine derivatives

  , JOURNAL OF CHEMICAL PHYSICS, Vol: 123, ISSN: 0021-9606
  • Author Web Link
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  • Citations: 33
• Journal article
  Tuladhar SM, Poplavskyy D, Choulis SA, Durrant JR, Bradley DDC, Nelson Jet al., 2005,

  Ambipolar charge transport in films of methanofullerene and poly(phenylenevinylene)/methanofullerene blends

  , ADVANCED FUNCTIONAL MATERIALS, Vol: 15, Pages: 1171-1182, ISSN: 1616-301X
  • Author Web Link
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  • Citations: 229
• Journal article
  Ravirajan P, Bradley DDC, Nelson J, Haque SA, Durrant JR, Smit HJP, Kroon JMet al., 2005,

  Efficient charge collection in hybrid polymer/TiO₂ solar cells using poly(ethylenedioxythiophene) polystyrene sulphonate as hole collector -: art. no. 143101

  , APPLIED PHYSICS LETTERS, Vol: 86, ISSN: 0003-6951
  • Author Web Link
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  • Citations: 88
• Journal article
  Ravirajan P, Haque SA, Durrant JR, Bradley DDC, Nelson Jet al., 2005,

  The effect of polymer optoelectronic properties on the performance of multilayer hybrid polymer/TiO₂ solar cells

  , ADVANCED FUNCTIONAL MATERIALS, Vol: 15, Pages: 609-618, ISSN: 1616-301X
  • Author Web Link
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  • Citations: 159
• Conference paper
  Kim Y, Choulis SA, Nelson J, Bradley DDC, Cook S, Durrant JRet al., 2005,

  Composition and annealing effects in polythiophene/fullerene solar cells

  , International Conference on Physics, Chemistry and Engineering of Solar Cells, Publisher: SPRINGER, Pages: 1371-1376, ISSN: 0022-2461
  • Author Web Link
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  • Citations: 201
• Conference paper
  Chatten AJ, Tuladhar SM, Choulis SA, Bradley DDC, Nelson Jet al., 2005,

  Monte Carlo modelling of hole transport in MDMO-PPV: PCBM blends

  , International Conference on Physics, Chemistry and Engineering of Solar Cells, Publisher: SPRINGER, Pages: 1393-1398, ISSN: 0022-2461
  • Author Web Link
  • Cite
  • Citations: 29
• Journal article
  Kim Y, Choulis SA, Nelson J, Bradley DDC, Cook S, Durrant JRet al., 2005,

  Device annealing effect in organic solar cells with blends of regioregular poly(3-hexylthiophene) and soluble fullerene

  , APPLIED PHYSICS LETTERS, Vol: 86, ISSN: 0003-6951
  • Author Web Link
  • Cite
  • Citations: 650
• Journal article
  Green ANM, Chandler RE, Haque SA, Nelson J, Durrant JRet al., 2005,

  Transient absorption studies and numerical modeling of iodine photoreduction by nanocrystalline TiO₂ films

  , JOURNAL OF PHYSICAL CHEMISTRY B, Vol: 109, Pages: 142-150, ISSN: 1520-6106
  • Author Web Link
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  • Citations: 82
• Journal article
  Cabanillas-Gonzalez J, Virgili T, Lanzani G, Yeates S, Ariu M, Nelson J, Bradley DDCet al., 2005,

  Photophysics of charge transfer in a polyfluorene/violanthrone blend

  , PHYSICAL REVIEW B, Vol: 71, ISSN: 2469-9950
  • Author Web Link
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  • Citations: 22
• Conference paper
  Kim Y, Cook S, Choulis SA, Nelson J, Durrant JRet al., 2005,

  Effect of electron transport polymer addition to polymer/fullerene blend solar cells

  , Proceedings ICSM 2004, Wollongong, Australia, July 2004
  • Cite
• Journal article
  Corkish R, Kettemann S, Nelson J, 2005,

  Special issue - guest editors

  , Physica E - Low-Dimensional Systems & Nanostructures, Vol: 14, Pages: 1-288, ISSN: 1386-9477
  • Cite
• Journal article
  Khodabakhsh S, Poplavskyy D, Heutz S, Nelson J, Bradley DDC, Murata F, Jones TSet al., 2004,

  Using self-assembling dipole molecules to improve hole injection in conjugated polymers

  , ADVANCED FUNCTIONAL MATERIALS, Vol: 14, Pages: 1205-1210, ISSN: 1616-301X
  • Author Web Link
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  • Citations: 145
• Journal article
  Pacios R, Nelson J, Bradley DDC, Virgili T, Lanzani G, Brabec CJet al., 2004,

  Ultrafast spectroscopic studies in polyfluorene:: [6,6]-phenyl C₆₁-butyric acid methyl ester blend films:: monitoring the photoinduced charge transfer process

  , JOURNAL OF PHYSICS-CONDENSED MATTER, Vol: 16, Pages: 8105-8116, ISSN: 0953-8984
  • Author Web Link
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  • Citations: 13
• Journal article
  Kim Y, Cook S, Choulis SA, Nelson J, Durrant JR, Bradley DDCet al., 2004,

  Organic photovoltaic devices based on blends of regioregular poly(3-hexylthiophene) and poly(9.9-dioctylfluorene<i>-co</i>-benzothiadiazole)

  , CHEMISTRY OF MATERIALS, Vol: 16, Pages: 4812-4818, ISSN: 0897-4756
  • Author Web Link
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  • Citations: 223

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