Publications
150 results found
Guijarro N, Lana-Villarreal T, Lutz T, et al., 2012, Sensitization of TiO<sub>2</sub> with PbSe Quantum Dots by SILAR: How Mercaptophenol Improves Charge Separation, JOURNAL OF PHYSICAL CHEMISTRY LETTERS, Vol: 3, Pages: 3367-3372, ISSN: 1948-7185
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- Citations: 60
Provencher F, Sakowicz M, Brosseau C-N, et al., 2012, Slow geminate-charge-pair recombination dynamics at polymer: Fullerene heterojunctions in efficient organic solar cells, JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, Vol: 50, Pages: 1395-1404, ISSN: 0887-6266
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- Citations: 13
Guijarro N, Lutz T, Lana-Villarreal T, et al., 2012, Toward Antimony Selenide Sensitized Solar Cells: Efficient Charge Photogeneration at <i>spiro</i>-OMeTAD/Sb<sub>2</sub>Se<sub>3</sub>/Metal Oxide Heterojunctions, JOURNAL OF PHYSICAL CHEMISTRY LETTERS, Vol: 3, Pages: 1351-1356, ISSN: 1948-7185
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- Citations: 80
Guilbert AAY, Reynolds LX, Bruno A, et al., 2012, Effect of Multiple Adduct Fullerenes on Microstructure and Phase Behaviour of P3HT:Fullerene Blend Films for Organic Solar Cells, ACS Nano, ISSN: 1936-0851
O'Mahony FTF, 2012, Electron and hole transfer at metal oxide/Sb2S3/spiro-OMeTAD heterojunctions, Energy & Environmental Science, Vol: 5
Bruno A, Del Mauro ADG, Nenna G, et al., 2012, Solvent effects on spectral emission of PVK and PVK-Ir(ppy)<sub>3</sub> based OLEDs, Conference on Organic Photonics V, Publisher: SPIE-INT SOC OPTICAL ENGINEERING, ISSN: 0277-786X
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- Citations: 2
De Freitas JN, Korala L, Reynolds LX, et al., 2012, Connecting the (quantum) dots: towards hybrid photovoltaic devices based on chalcogenide gels, PHYSICAL CHEMISTRY CHEMICAL PHYSICS, Vol: 14, Pages: 15180-15184, ISSN: 1463-9076
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- Citations: 11
Reynolds LX, Lutz T, Dowland S, et al., 2012, Charge photogeneration in hybrid solar cells: A comparison between quantum dots and in situ grown CdS, Nanoscale, Vol: 4, Pages: 1561-1564, ISSN: 2040-3364
We demonstrate that blend films containing poly(3-hexylthiophene-2,5-diyl) and in situ grown CdS display a greater yield of photogenerated charges than a blend containing an equivalent amount of pre-synthesised CdS quantum dots. Moreover, we show that the greater charge yield in the in situ grown films leads to an improvement in device efficiency. The present findings also appear to suggest that charge photogeneration at the CdS/polymer heterojunction is facilitated by the formation of nanoparticle networks as a result of CdS aggregation.
Lutz T, MacLachlan A, Sudlow A, et al., 2012, Thermal decomposition of solution processable metal xanthates on mesoporous titanium dioxide films: a new route to quantum-dot sensitised heterojunctions, PHYSICAL CHEMISTRY CHEMICAL PHYSICS, Vol: 14, Pages: 16192-16196, ISSN: 1463-9076
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- Citations: 26
Kirkpatrick J, Keivanidis PE, Bruno A, et al., 2011, Ultrafast Transient Optical Studies of Charge Pair Generation and Recombination in Poly-3-Hexylthiophene(P3ht):[6,6]Phenyl C61 Butyric Methyl Acid Ester (PCBM) Blend Films, JOURNAL OF PHYSICAL CHEMISTRY B, Vol: 115, Pages: 15174-15180, ISSN: 1520-6106
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- Citations: 27
Piper R, Yoshida M, Ekins-Daukes N, et al., 2011, Two-photon triplet-triplet annihilation upconversion for photovoltaics, Pages: 003632-003635, ISSN: 0160-8371
Upconversion is a promising technique for significantly enhancing the efficiency of photovoltaic cells. Molecular systems provide an environment in which long lived triplet states can be exploited to achieve high upconversion efficiencies under solar illumination. We report on the investigation of bi-molecular triplet-triplet annihilation upconversion (TTA-UC) in a Palladium (II) tetrakisquinoxalino porphyrin (PQ 4Pd)/rubrene solution. These molecules were studied in solution using UV/VIS spectroscopy to determine their stability in air over a period of weeks. Transient absorption spectroscopy (TAS) was used to directly measure the lifetime of triplet states within these mixtures and hence determine the photoinduced kinetics of the system. The lifetime of porphyrin triplets was reduced from 92.4 μs in pristine PQ 4Pd to 2.4 μs in the presence of rubrene. From this change, the rate constant associated with triplet energy transfer (k TET) was calculated as 3.38 × 10 8M -1s -1. Additionally, a reduction in the absorption of 530 nm light (the ground state rubrene absorption peak) was observed, while the mixture was pumped at the absorption peak of the porphyrin (670 nm). This change became apparent nearly 6 μs after the laser pulse, showing energy transfer from the porphyrin to the rubrene, and allowing further insight into the kinetics of the mechanism. © 2011 IEEE.
Rath T, Edler M, Haas W, et al., 2011, A Direct Route Towards Polymer/Copper Indium Sulfide Nanocomposite Solar Cells, ADVANCED ENERGY MATERIALS, Vol: 1, Pages: 1046-1050, ISSN: 1614-6832
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- Citations: 91
Dowland S, Lutz T, Ward A, et al., 2011, Direct Growth of Metal Sulfide Nanoparticle Networks in Solid-State Polymer Films for Hybrid Inorganic-Organic Solar Cells, ADVANCED MATERIALS, Vol: 23, Pages: 2739-2744, ISSN: 0935-9648
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- Citations: 120
Haeussler M, King SP, Eng MP, et al., 2011, Photo-spectroscopic properties of benzothiadiazole-containing pendant polymers for photovoltaic applications, JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, Vol: 220, Pages: 102-112, ISSN: 1010-6030
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- Citations: 4
Lee HJ, Leventis HC, Haque SA, et al., 2011, Panchromatic response composed of hybrid visible-light absorbing polymers and near-IR absorbing dyes for nanocrystalline TiO<sub>2</sub>-based solid-state solar cells, JOURNAL OF POWER SOURCES, Vol: 196, Pages: 596-599, ISSN: 0378-7753
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- Citations: 46
Hofmann CC, Lindner SM, Ruppert M, et al., 2010, The influence of π-π-stacking on the light-harvesting properties of perylene bisimide antennas that are covalently linked to a [60]fullerene, PHYSICAL CHEMISTRY CHEMICAL PHYSICS, Vol: 12, Pages: 14485-14491, ISSN: 1463-9076
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- Citations: 11
Haeussler M, Lok YP, Chen M, et al., 2010, Benzothiadiazole-Containing Pendant Polymers Prepared by RAFT and Their Electro-Optical Properties, MACROMOLECULES, Vol: 43, Pages: 7101-7110, ISSN: 0024-9297
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- Citations: 22
Dyer-Smith C, Reynolds LX, Bruno A, et al., 2010, Triplet Formation in Fullerene Multi-Adduct Blends for Organic Solar Cells and Its Influence on Device Performance, ADVANCED FUNCTIONAL MATERIALS, Vol: 20, Pages: 2701-2708, ISSN: 1616-301X
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- Citations: 45
Hofmann CC, Lindner SM, Ruppert M, et al., 2010, Mutual Interplay of Light Harvesting and Triplet Sensitizing in a Perylene Bisimide Antenna-Fullerene Dyad, JOURNAL OF PHYSICAL CHEMISTRY B, Vol: 114, Pages: 9148-9156, ISSN: 1520-6106
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- Citations: 54
Leventis HC, King SP, Sudlow A, et al., 2010, Nanostructured Hybrid Polymer-Inorganic Solar Cell Active Layers Formed by Controllable in Situ Growth of Semiconducting Sulfide Networks, NANO LETTERS, Vol: 10, Pages: 1253-1258, ISSN: 1530-6984
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- Citations: 196
Horie M, Shen I-W, Tuladhar SM, et al., 2010, Poly(thienylenevinylene) prepared by ring-opening metathesis polymerization: Performance as a donor in bulk heterojunction organic photovoltaic devices, POLYMER, Vol: 51, Pages: 1541-1547, ISSN: 0032-3861
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- Citations: 23
Haque SA, Nelson J, 2010, Toward Organic All-Optical Switching, SCIENCE, Vol: 327, Pages: 1466-1467, ISSN: 0036-8075
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- Citations: 52
Leventis HC, O'Mahony F, Akhtar J, et al., 2010, Transient Optical Studies of Interfacial Charge Transfer at Nanostructured Metal Oxide/PbS Quantum Dot/Organic Hole Conductor Heterojunctions, JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Vol: 132, Pages: 2743-2750, ISSN: 0002-7863
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- Citations: 102
Woebkenberg PH, Ishwara T, Nelson J, et al., 2010, TiO<sub>2</sub> thin-film transistors fabricated by spray pyrolysis, APPLIED PHYSICS LETTERS, Vol: 96, ISSN: 0003-6951
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- Citations: 51
Hofmann CC, Bauer P, Haque SA, et al., 2009, Energy- and charge-transfer processes in flexible organic donor-acceptor dyads, JOURNAL OF CHEMICAL PHYSICS, Vol: 131, ISSN: 0021-9606
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- Citations: 12
Tokmoldin N, Griffiths N, Bradley DDC, et al., 2009, A Hybrid Inorganic-Organic Semiconductor Light-Emitting Diode Using ZrO<sub>2</sub> as an Electron-Injection Layer, ADVANCED MATERIALS, Vol: 21, Pages: 3475-+, ISSN: 0935-9648
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- Citations: 148
Lee H, Leventis HC, Moon S-J, et al., 2009, PbS and US Quantum Dot-Sensitized Solid-State Solar Cells: "Old Concepts, New Results", ADVANCED FUNCTIONAL MATERIALS, Vol: 19, Pages: 2735-2742, ISSN: 1616-301X
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- Citations: 446
Dyer-Smith C, Benson-Smith JJ, Bradley DDC, et al., 2009, The Effect of Ionization Potential and Film Morphology on Exciplex Formation and Charge Generation in Blends of Polyfluorene Polymers and Silole Derivatives, JOURNAL OF PHYSICAL CHEMISTRY C, Vol: 113, Pages: 14533-14539, ISSN: 1932-7447
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- Citations: 16
Wong WWH, Jones DJ, Yan C, et al., 2009, Synthesis, Photophysical, and Device Properties of Novel Dendrimers Based on a Fluorene-Hexabenzocoronene (FHBC) Core, ORGANIC LETTERS, Vol: 11, Pages: 975-978, ISSN: 1523-7060
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- Citations: 43
Leventis HC, Haque SA, 2009, Control of charge recombination at nanostructured quantum-dot sensitized TiO<sub>2</sub> interfaces employing a multi-step redox cascade, ENERGY & ENVIRONMENTAL SCIENCE, Vol: 2, Pages: 1176-1179, ISSN: 1754-5692
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- Citations: 20
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