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Journal articleWong HC, Li Z, Tan CH, et al., 2014,
Morphological Stability and Performance of Polymer-Fullerene Solar Cells under Thermal Stress: The Impact of Photoinduced PC60BM Oligomerization
, ACS NANO, Vol: 8, Pages: 1297-1308, ISSN: 1936-0851- Author Web Link
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- Citations: 111
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Journal articleShoaee S, Briscoe J, Durrant JR, et al., 2014,
Acoustic Enhancement of Polymer/ZnO Nanorod Photovoltaic Device Performance
, ADVANCED MATERIALS, Vol: 26, Pages: 263-268, ISSN: 0935-9648- Author Web Link
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- Citations: 71
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Journal articleDimitrov SD, Durrant JR, 2014,
Materials Design Considerations for Charge Generation in Organic Solar Cells
, CHEMISTRY OF MATERIALS, Vol: 26, Pages: 616-630, ISSN: 0897-4756- Author Web Link
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- Citations: 213
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Journal articleRazzell-Hollis J, Wade J, Tsoi WC, et al., 2014,
Photochemical stability of high efficiency PTB7:PC70BM solar cell blends
, JOURNAL OF MATERIALS CHEMISTRY A, Vol: 2, Pages: 20189-20195, ISSN: 2050-7488- Author Web Link
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- Citations: 118
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Journal articleHuang Z, Fregoso EC, Dimitrov S, et al., 2014,
Optimisation of diketopyrrolopyrrole:fullerene solar cell performance through control of polymer molecular weight and thermal annealing
, JOURNAL OF MATERIALS CHEMISTRY A, Vol: 2, Pages: 19282-19289, ISSN: 2050-7488- Author Web Link
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- Citations: 23
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Journal articleShivanna R, Shoaee S, Dimitrov S, et al., 2014,
Charge generation and transport in efficient organic bulk heterojunction solar cells with a perylene acceptor
, ENERGY & ENVIRONMENTAL SCIENCE, Vol: 7, Pages: 435-441, ISSN: 1754-5692 -
Journal articleBeatrup D, Wade J, Biniek L, et al., 2014,
Polaron stability in semiconducting polymer neat films
, CHEMICAL COMMUNICATIONS, Vol: 50, Pages: 14425-14428, ISSN: 1359-7345- Author Web Link
- Open Access Link
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- Citations: 14
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Journal articlePlanells M, Nikolka M, Hurhangee M, et al., 2014,
The effect of thiadiazole out-backbone displacement in indacenodithiophene semiconductor polymers
, JOURNAL OF MATERIALS CHEMISTRY C, Vol: 2, Pages: 8789-8795, ISSN: 2050-7526- Author Web Link
- Open Access Link
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- Citations: 21
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Journal articleMeager I, Ashraf RS, Nielsen CB, et al., 2014,
Power conversion efficiency enhancement in diketopyrrolopyrrole based solar cells through polymer fractionation
, JOURNAL OF MATERIALS CHEMISTRY C, Vol: 2, Pages: 8593-8598, ISSN: 2050-7526- Author Web Link
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- Citations: 13
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Journal articleMa Y, Pendlebury SR, Reynal A, et al., 2014,
Dynamics of photogenerated holes in undoped BiVO4 photoanodes for solar water oxidation
, Chemical Science, Vol: 5, Pages: 2964-2973, ISSN: 2041-6520The dynamics of photogenerated holes in undoped BiVO4 photoanodes for water splitting were studied using transient absorption spectroscopy, correlated with photoelectrochemical and transient photocurrent data. Transient absorption signals of photogenerated holes were identified using electron/hole scavengers and applied electrical bias in a complete photoelectrochemical cell. The yield of long-lived (0.1-1 s) photogenerated holes is observed to correlate as a function of applied electrical bias with the width of the space charge layer, as determined by electrochemical impedance spectroscopy. The transient absorption decay time constant of these long-lived holes is also observed to be dependent upon the applied bias, assigned to kinetic competition between water oxidation and recombination of these surface accumulated holes with bulk electrons across the space charge layer. The time constant for this slow recombination measured with transient absorption spectroscopy is shown to match the time constant of back electron transfer from the external circuit determined from chopped light transient photocurrent measurements, thus providing strong evidence for these assignments. The yield of water oxidation determined from these measurements, including consideration of both the yield of long-lived holes, and the fraction of these holes which are lost due to back electron/hole recombination, is observed to be in good agreement with the photocurrent density measured for BiVO4 photoanodes as a function of bias under continuous irradiation. Overall these results indicate two distinct recombination processes which limit photocurrent generation in BiVO4 photoanodes: firstly rapid ([less-than-or-equal]microseconds) electron/hole recombination, and secondly recombination of surface-accumulated holes with bulk BiVO4 electrons. This second 'back electron transfer' recombination occurs on the milliseconds-seconds timescale, and is only avoided at strong anodic biases where the potentia
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Journal articlePastor E, Pesci FM, Reynal A, et al., 2014,
Interfacial charge separation in Cu2O/RuOx as a visible light driven CO2 reduction catalyst
, Physical Chemistry Chemical Physics, ISSN: 1463-9076We employ transient absorption spectroscopy to record the absorption spectrum of photogenerated charge carriers in Cu2O. We have found that CO2 reduction in Cu2O is limited by fast electron-hole recombination. The deposition of RuOx nanoparticles on Cu2O results in a twofold increased yield of long-lived electrons, indicating partially reduced electron-hole recombination losses. This observation correlates with an approximately sixfold increase in the yield of CO2 reduction to CO.
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Journal articleGross MA, Reynal A, Durrant JR, et al., 2013,
A Versatile Photocatalytic System for H2 Generation in Water Based on an Efficient DuBois-type Nickel Catalyst
, Journal of the American Chemical Society, ISSN: 0002-7863 -
Journal articleDibb GFA, Muth M-A, Kirchartz T, et 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- Author Web Link
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- Citations: 61
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Journal articleBronstein H, Hurhangee M, Fregoso EC, et 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- Author Web Link
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- Citations: 51
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Journal articleHawks SA, Deledalle F, Yao J, et 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: 90
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Journal articleDurrant JR, 2013,
Molecular approaches to solar energy conversion: the energetic cost of charge separation from molecular-excited states
, PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, Vol: 371, ISSN: 1364-503X- Author Web Link
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- Citations: 12
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Journal articleKirchartz T, Deledalle F, Tuladhar PS, et 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- Author Web Link
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- Citations: 188
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Journal articleShoaee S, Subramaniyan S, Xin H, et al., 2013,
Charge Photogeneration for a Series of Thiazolo-Thiazole Donor Polymers Blended with the Fullerene Electron Acceptors PCBM and ICBA
, ADVANCED FUNCTIONAL MATERIALS, Vol: 23, Pages: 3286-3298, ISSN: 1616-301X- Author Web Link
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- Citations: 146
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Journal articleLi Z, Wong HC, Huang Z, et al., 2013,
Performance enhancement of fullerene-based solar cells by light processing
, NATURE COMMUNICATIONS, Vol: 4, ISSN: 2041-1723- Author Web Link
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- Citations: 105
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Journal articleFaist MA, Shoaee S, Tuladhar S, et al., 2013,
Understanding the Reduced Efficiencies of Organic Solar Cells Employing Fullerene Multiadducts as Acceptors
, ADVANCED ENERGY MATERIALS, Vol: 3, Pages: 744-752, ISSN: 1614-6832- Author Web Link
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- Citations: 116
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Conference paperPatel M, Mallia G, Harrison NM, 2013,
The structure of water on rutile TiO2(110) for applications in solar hydrogen production: towards a predictive model using hybrid-exchange density functional theory
, MRS Spring Meeting 2013 -
Journal articleAshraf RS, Schroeder BC, Bronstein HA, et al., 2013,
The Influence of Polymer Purification on Photovoltaic Device Performance of a Series of Indacenodithiophene Donor Polymers
, ADVANCED MATERIALS, Vol: 25, Pages: 2029-2034, ISSN: 0935-9648- Author Web Link
- Open Access Link
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- Citations: 118
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Journal articleDibb GFA, Jamieson FC, Maurano A, et al., 2013,
Limits on the Fill Factor in Organic Photovoltaics: Distinguishing Nongeminate and Geminate Recombination Mechanisms
, JOURNAL OF PHYSICAL CHEMISTRY LETTERS, Vol: 4, Pages: 803-808, ISSN: 1948-7185- Author Web Link
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- Citations: 97
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Journal articleZhong H, Li Z, Deledalle F, et al., 2013,
Fused Dithienogermolodithiophene Low Band Gap Polymers for High-Performance Organic Solar Cells without Processing Additives
, JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Vol: 135, Pages: 2040-2043, ISSN: 0002-7863- Author Web Link
- Open Access Link
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- Citations: 132
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Journal articleBiniek L, Schroeder BC, Donaghey JE, et al., 2013,
New Fused Bis-Thienobenzothienothiophene Copolymers and Their Use in Organic Solar Cells and Transistors
, Macromolecules, Vol: 46, Pages: 727-735, ISSN: 0024-9297 -
Journal articleBakulin AA, Dimitrov SD, Rao A, et al., 2013,
Charge-Transfer State Dynamics Following Hole and Electron Transfer in Organic Photovoltaic Devices
, JOURNAL OF PHYSICAL CHEMISTRY LETTERS, Vol: 4, Pages: 209-215, ISSN: 1948-7185- Author Web Link
- Open Access Link
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- Citations: 112
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Journal articleBarroso M, Pendlebury SR, Cowan AJ, et al., 2013,
Charge carrier trapping, recombination and transfer in hematite (alpha-Fe2O3) water splitting photoanodes
, CHEMICAL SCIENCE, Vol: 4, Pages: 2724-2734, ISSN: 2041-6520- Author Web Link
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- Citations: 358
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Journal articleCowan AJ, Leng W, Barnes PRF, et al., 2013,
Charge carrier separation in nanostructured TiO2 photoelectrodes for water splitting
, PHYSICAL CHEMISTRY CHEMICAL PHYSICS, Vol: 15, Pages: 8772-8778, ISSN: 1463-9076- Author Web Link
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- Citations: 53
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Journal articleCowan AJ, Durrant JR, 2013,
Long-lived charge separated states in nanostructured semiconductor photoelectrodes for the production of solar fuels
, CHEMICAL SOCIETY REVIEWS, Vol: 42, Pages: 2281-2293, ISSN: 0306-0012- Author Web Link
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- Citations: 263
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Journal articleRumer JW, Dai S-Y, Levick M, et al., 2013,
Dihydropyrroloindoledione-based copolymers for organic electronics
, JOURNAL OF MATERIALS CHEMISTRY C, Vol: 1, Pages: 2711-2716, ISSN: 2050-7526- Author Web Link
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- Citations: 18
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