Publications
661 results found
Ohkita H, Cook S, Astuti Y, et al., 2006, Radical ion pair mediated triplet formation in polymer-fullerene blend films, CHEMICAL COMMUNICATIONS, Pages: 3939-3941, ISSN: 1359-7345
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- Citations: 48
Handa S, Giacalone F, Haque SA, et al., 2005, Solid film versus solution-phase charge-recombination dynamics of exTTF-bridge-C<sub>60</sub> dyads, CHEMISTRY-A EUROPEAN JOURNAL, Vol: 11, Pages: 7440-7447, ISSN: 0947-6539
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- Citations: 32
Peiró AM, Ravirajan P, Govender K, et 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%.
Astuti Y, Palomares E, Haque SA, et al., 2005, Triplet state photosensitization of nanocrystalline metal oxide electrodes by zinc-substituted cytochrome <i>c</i>:: Application to hydrogen evolution, JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Vol: 127, Pages: 15120-15126, ISSN: 0002-7863
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- Citations: 33
Peiró AM, Doyle G, Mills A, et al., 2005, Freestanding polymer-metal oxide nanocomposite films for light-driven oxygen scavenging, ADVANCED MATERIALS, Vol: 17, Pages: 2365-+, ISSN: 0935-9648
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- Citations: 18
Coronado E, Galán-Mascaros JR, Martí-Gastaldo C, et al., 2005, Reversible colorimetric probes for mercury sensing, JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Vol: 127, Pages: 12351-12356, ISSN: 0002-7863
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- Citations: 310
Li XE, Yan HT, Durrant JR, 2005, Preparation of titanium dioxide-polymer nanocomposite films and its photocatalytic property of oxygen consumption, Gao Xiao Hua Xue Gong Cheng Xue Bao/Journal of Chemical Engineering of Chinese Universities, Vol: 19, Pages: 536-540, ISSN: 1003-9015
TiO2-polymer nanocomposite film was prepared as a new kind of photocatalyst for light-driven oxygen consumption in a closed environment. Nanocrystalline TiO2 was prepared at first via gel-hydrothermal method, then the TiO2-polymer nanocomposite films, in which PVC or PEG was introduced, were prepared through two different kinds of method. The one was that the nanometer TiO2 was loaded on the substrates at first and then the polymer was coated on the nanometer TiO2 surface layer by layer, and the other one was that polymer was blended with nanometer TiO2 firstly and then the mixture was coated on substrates. The probable structure of the TiO2-polymer nanocomposite film was proposed, and its photo-stability was monitored by a UV-visible spectrophotometer. In addition, light-driven oxygen consumption on TiO2-polymer nanocomposite film was investigated in a closed environment monitored by an oxygen measurement controller, and the kinetics of deoxygenation was discussed. It concludes that oxygen could be consumed in a closed environment based on photocatalysis principle, and the kinetics of deoxygenation could be described by Langmuir-Hinshelwood equation, which is in accord with the form of a modified first-order reaction.
Schmidt-Mende L, Kroeze JE, Durrant JR, et al., 2005, Effect of hydrocarbon chain length of amphiphilic ruthenium dyes on solid-state dye-sensitized photovoltaics, NANO LETTERS, Vol: 5, Pages: 1315-1320, ISSN: 1530-6984
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- Citations: 140
Tuladhar SM, Poplavskyy D, Choulis SA, et 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
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- Citations: 229
Green ANM, Palomares E, Haque SA, et al., 2005, Charge transport versus recombination in dye-sensitized solar cells employing nanocrystalline TiO<sub>2</sub> and SnO<sub>2</sub> films, JOURNAL OF PHYSICAL CHEMISTRY B, Vol: 109, Pages: 12525-12533, ISSN: 1520-6106
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- Citations: 365
Heutz S, Nogueira AF, Durrant JR, et al., 2005, Charge recombination in CuPc/PTCDA thin films, JOURNAL OF PHYSICAL CHEMISTRY B, Vol: 109, Pages: 11693-11696, ISSN: 1520-6106
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- Citations: 8
Topoglidis E, Palomares E, Astuti Y, et al., 2005, Immobilization and electrochemistry of negatively charged proteins on modified nanocrystalline metal oxide electrodes, ELECTROANALYSIS, Vol: 17, Pages: 1035-1041, ISSN: 1040-0397
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- Citations: 38
Li XE, Yan HT, Durrant JR, 2005, Studies on the photo-stability of poly <i>p</i>-(phenylene vinylene), SPECTROSCOPY AND SPECTRAL ANALYSIS, Vol: 25, Pages: 743-746, ISSN: 1000-0593
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- Citations: 1
Waters JP, Smyth-Boyle D, Govender K, et al., 2005, Simple CVD routes towards infiltration of mesoporous TiO<sub>2</sub>, CHEMICAL VAPOR DEPOSITION, Vol: 11, Pages: 254-260, ISSN: 0948-1907
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- Citations: 7
Ravirajan P, Bradley DDC, Nelson J, et al., 2005, Efficient charge collection in hybrid polymer/TiO<sub>2</sub> solar cells using poly(ethylenedioxythiophene) polystyrene sulphonate as hole collector -: art. no. 143101, APPLIED PHYSICS LETTERS, Vol: 86, ISSN: 0003-6951
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- Citations: 88
Ravirajan P, Haque SA, Durrant JR, et al., 2005, The effect of polymer optoelectronic properties on the performance of multilayer hybrid polymer/TiO<sub>2</sub> solar cells, ADVANCED FUNCTIONAL MATERIALS, Vol: 15, Pages: 609-618, ISSN: 1616-301X
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- Citations: 159
O'Regan BC, Scully S, Mayer AC, et al., 2005, The effect of Al<sub>2</sub>O<sub>3</sub> barrier layers in TiO<sub>2</sub>/Dye/CuSCN photovoltaic cells explored by recombination and DOS characterization using transient photovoltage measurements, JOURNAL OF PHYSICAL CHEMISTRY B, Vol: 109, Pages: 4616-4623, ISSN: 1520-6106
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- Citations: 313
Haque SA, Palomares E, Cho BM, et al., 2005, Charge separation versus recombination in dye-sensitized nanocrystalline solar cells: the minimization of kinetic redundancy, Journal of the American Chemical Society, Vol: 127, Pages: 3456-3462, ISSN: 0002-7863
Kim Y, Choulis SA, Nelson J, et 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
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- Citations: 201
Kim Y, Choulis SA, Nelson J, et 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
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- Citations: 650
Klein C, Nazeeruddin MK, Liska P, et al., 2005, Engineering of a novel ruthenium sensitizer and its application in dye-sensitized solar cells for conversion of sunlight into electricity, INORGANIC CHEMISTRY, Vol: 44, Pages: 178-180, ISSN: 0020-1669
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- Citations: 180
Geary EAM, Yellowlees LJ, Jack LA, et al., 2005, Synthesis, structure, and properties of [Pt(II)(diimine)(dithiolate)] dyes with 3,3′-, 4,4′-, and 5,5′-disubstituted bipyridyl:: Applications in dye-sensitized solar cells, INORGANIC CHEMISTRY, Vol: 44, Pages: 242-250, ISSN: 0020-1669
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- Citations: 196
Hore S, Palomares E, Smit H, et al., 2005, Acid <i>versus</i> base peptization of mesoporous nanocrystalline TiO<sub>2</sub> films:: functional studies in dye sensitized solar cellst, JOURNAL OF MATERIALS CHEMISTRY, Vol: 15, Pages: 412-418, ISSN: 0959-9428
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- Citations: 68
Green ANM, Chandler RE, Haque SA, et al., 2005, Transient absorption studies and numerical modeling of iodine photoreduction by nanocrystalline TiO<sub>2</sub> films, JOURNAL OF PHYSICAL CHEMISTRY B, Vol: 109, Pages: 142-150, ISSN: 1520-6106
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- Citations: 82
Haque SA, Handa A, Katja P, et al., 2005, Supermolecular control of charge transfer in dye-sensitized nanocrystalline TiO2 films: towards a quantitative structure-function relationship, Angewandte Chemie International Edition, Vol: 44, Pages: 5740-5744, ISSN: 1433-7851
Kim Y, Cook S, Choulis SA, et al., 2005, Effect of electron transport polymer addition to polymer/fullerene blend solar cells, Proceedings ICSM 2004, Wollongong, Australia, July 2004
Fabregat-Santiago F, García-Cañadas J, Palomares E, et al., 2004, The origin of slow electron recombination processes in dye-sensitized solar cells with alumina barrier coatings, JOURNAL OF APPLIED PHYSICS, Vol: 96, Pages: 6903-6907, ISSN: 0021-8979
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- Citations: 171
Kim Y, Cook S, Choulis SA, et 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
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- Citations: 223
Haque SA, Park JS, Srinivasarao M, et al., 2004, Molecular-level insulation: An approach to controlling interfacial charge transfer, ADVANCED MATERIALS, Vol: 16, Pages: 1177-+, ISSN: 0935-9648
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- Citations: 58
Astuti Y, Topoglidis E, Briscoe PB, et al., 2004, Proton-coupled electron transfer of flavodoxin immobilized on nanostructured tin dioxide electrodes: Thermodynamics versus kinetics control of protein redox function, JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Vol: 126, Pages: 8001-8009, ISSN: 0002-7863
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- Citations: 69
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