R
Robert J. E. Westbrook
Researcher at Imperial College London
Publications - 14
Citations - 328
Robert J. E. Westbrook is an academic researcher from Imperial College London. The author has contributed to research in topics: Perovskite (structure) & Chemistry. The author has an hindex of 4, co-authored 6 publications receiving 103 citations. Previous affiliations of Robert J. E. Westbrook include University College London.
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Journal ArticleDOI
Degradation mechanism of hybrid tin-based perovskite solar cells and the critical role of tin (IV) iodide.
Luis Lanzetta,Thomas Webb,Nourdine Zibouche,Xinxing Liang,Dong Ding,Ganghong Min,Robert J. E. Westbrook,Benedetta Gaggio,Thomas J. Macdonald,M. Saiful Islam,Saif A. Haque +10 more
TL;DR: In this article, the degradation mechanism of 2D/3D tin perovskite films based on (PEA)0.2(FA) 0.8SnI3 (where PEA is phenylethylammonium and FA is formamidinium).
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Understanding the Enhanced Stability of Bromide Substitution in Lead Iodide Perovskites
Alex Aziz,Nicholas Aristidou,Xiangnan Bu,Robert J. E. Westbrook,Saif A. Haque,M. Saiful Islam +5 more
TL;DR: In this article, Methylammonium (MA) and lead halide perovskites have been used as candidate materials for high-performing solar cells, but show serious issues related to long-term stability.
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Effect of Interfacial Energetics on Charge Transfer from Lead Halide Perovskite to Organic Hole Conductors
Robert J. E. Westbrook,Robert J. E. Westbrook,Irene Sánchez-Molina,Jose Manuel Marin-Beloqui,Hugo Bronstein,Saif A. Haque +5 more
TL;DR: In this article, the authors measured the yield and kinetics of hole transfer across the methylammonium lead triiodide perovskite|polymeric hole transport material heterojunction, as a function of the interfacial energy offset, ΔE, between the highest occupied molecular orbital of the hole transport materials and the valence band edge of the perovsite.
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Surface Passivation of Perovskite Films via Iodide Salt Coatings for Enhanced Stability of Organic Lead Halide Perovskite Solar Cells
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Lewis Base Passivation Mediates Charge Transfer at Perovskite Heterojunctions.
Robert J. E. Westbrook,Robert J. E. Westbrook,Thomas J. Macdonald,Weidong Xu,Luis Lanzetta,Jose Manuel Marin-Beloqui,Tracey M. Clarke,Saif A. Haque +7 more
TL;DR: In this article, a mixture of optical and X-ray photoelectron spectroscopy was used to show that chemical binding of charge transport layers to CH3NH3PbI3 defect sites is an integral part of the interfacial charge injection mechanism in both n-i p and p-i n architectures.