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Select a topic: [Nanowires] [Perovskite Photovoltaics] [Terahertz Technology] [Full publication list]

Key pubilcations on Perovskites

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Influence of Interface Morphology on Hysteresis in Vapor-Deposited Perovskite Solar Cells
Patel et al. , 3:1600470 (Feb 2017)
[ pdf ][ DOI:10.1002/aelm.201600470 ]
We use interface engineering to produce highly crystalline perovskite hysteresis-free evaporated planar heterojunction solar cells. TEM reveals that poor interfaces leads to amorphous regions of MAPbI3, hysteresis and poor stabilised power conversion efficiencies.

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Hybrid Perovskites for Photovoltaics: Charge-Carrier Recombination, Diffusion, and Radiative Efficiencies
Johnston et al. Accounts Chem. Res., 49:146--154 (Jan 2016)
[ pdf ][ DOI:10.1021/acs.accounts.5b00411 ]
A review of the photo physics of Perovskite based semiconductors

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Formation Dynamics of CH$_3$NH$_3$PbI$_3$ Perovskite Following Two-Step Layer Deposition
Patel et al. J. Phys. Chem. Lett., 7:96-102 (Jan 2016)
[ pdf ][ DOI:10.1021/acs.jpclett.5b02495 ]
We follow the formation of MAPbI3 from PbI2 and MAI precursors using XRD, VIS, and PL spectroscopies and show the importance of water in achieving full crystallisation

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A mixed-cation lead mixed-halide perovskite absorber for tandem solar cells
McMeekin et al. Science, 351:151-155 (Jan 2016)
[ pdf ][ DOI:10.1126/science.aad5845 ]

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Charge-Carrier Dynamics and Mobilities in Formamidinium Lead Mixed-Halide Perovskites
Rehman et al. Adv. Mater., 27:7938--7944 (Dec 2015)
[ pdf ][ DOI:10.1002/adma.201502969 ]

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Colour-selective photodiodes
Johnston Nat. Photonics, 9:633-636 (Oct 2015)
[ pdf ][ DOI:10.1038/nphoton.2015.180 ]

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Temperature-dependent charge-carrier dynamics in {CH$_3$NH$_3$PbI$_3$} perovskite thin films
Milot et al. Adv. Funct. Mater., 25:6218-6227 (Oct 2015)
[ pdf ][ DOI:10.1002/adfm.201502340 ]
The photoconductivity in CH3NH3PbI3 thin films is investigated from 8 K to 370 K across three structural phases, and analysis of the charge-carrier recombination dynamics reveals a variety of starkly differing recombination mechanisms.

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Perez-Osorio et al. J. Phys. Chem. C, 119:25703--25718 (Oct 2015)
[ pdf ][ DOI:10.1021/acs.jpcc.5b07432 ]

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Solution deposition-conversion for planar heterojunction mixed halide perovskite solar cells
Docampo et al. Adv. Energy Mater., 4:1400355 (Oct 2014)
[ pdf ][ DOI:10.1002/aenm.201400355 ]
We present planar, fully solution-processed heterojunction mixed halide solar cells based on the solution deposition-conversion technique.

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Charge carrier recombination channels in the low-temperature phase of organic-inorganic lead halide perovskite thin films
Wehrenfennig et al. APL Mater., 2:081513 (Aug 2014)
[ pdf ][ DOI:10.1063/1.4891595 ]
we present a temperature-dependent study of optical absorption and photoluminescence (PL) emission of vapor-deposited organic-inorganic Perovskite semiconductors exploring the nature of recombination channels in the room- and the low-temperature phase of the material.

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Charge-carrier dynamics in vapour-deposited films of the organolead halide perovskite {CH$_3$NH$_3$PbI$_{3-x}$Cl$_x$}
Wehrenfennig et al. Energy Environ. Sci., 7:2269--2275 (Jun 2014)
[ pdf ][ DOI:10.1039/C4EE01358A ]
We determine high charge-carrier mobilities over 33 cm^2/V/s and bi-molecular recombination rates about five orders of magnitude below the prediction of Langevin's model in vapour-deposited Perovskite solar cells.

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Wehrenfennig et al. J. Phys. Chem. Lett., 5:1300-1306 (Apr 2014)
[ pdf ][ DOI:10.1021/jz500434p ]
We show that the PL spectrum of the Perovskite methyl ammonium lead trihalide is homogenously broadened with a line width of 103 meV as a consequence of phonon coupling effects. Thus the materials has the potential to be used in a laser with pulses as short as 10fs.

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High Charge Carrier Mobilities and Lifetimes in Organolead Trihalide Perovskites
Wehrenfennig et al. Adv. Mater., 26:1584-1589 (Mar 2014)
[ pdf ][ DOI:10.1002/adma.201305172 ]
The reason for the high performance of Perovskite solar cells is presented. Organolead trihalide perovskites are shown to exhibit the best of both worlds: charge carrier mobilities around 10 cm2/V/s and low bi-molecular charge recombination constants.

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Formamidinium lead trihalide: a broadly tunable perovskite for efficient planar heterojunction solar cells
Eperon et al. Energy Environ. Sci., 7:982-988 (Mar 2014)
[ pdf ][ DOI:10.1039/C3EE43822H ]

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Efficient planar heterojunction perovskite solar cells by vapour deposition
Liu et al. Nature, 501:395--398 (Sep 2013)
[ pdf ][ DOI:10.1038/nature12509 ]
We demonstrate that a simple planar heterojunction solar cell incorporating a 330nm film of vapour-deposited lead halide perovskite as the absorbing layer can have solar-to-electrical power conversion efficiencies of over 15 per cent.