S
Saar Kirmayer
Researcher at Weizmann Institute of Science
Publications - 17
Citations - 4466
Saar Kirmayer is an academic researcher from Weizmann Institute of Science. The author has contributed to research in topics: Perovskite (structure) & Thin film. The author has an hindex of 13, co-authored 17 publications receiving 4112 citations. Previous affiliations of Saar Kirmayer include Lawrence Berkeley National Laboratory & Technion – Israel Institute of Technology.
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Journal ArticleDOI
Interface energetics in organo-metal halide perovskite-based photovoltaic cells
TL;DR: In this article, direct and inverse photoemission spectroscopies are used to determine materials electronic structure and energy level alignment in hybrid organic-inorganic perovskite layers grown on TiO2.
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Why Lead Methylammonium tri-IODIDE perovskite-based solar cells requires a mesoporous electron transporting scaffold (but not necessarily a hole conductor)
Eran Edri,Saar Kirmayer,Alex Henning,Sabyasachi Mukhopadhyay,Konstantin Gartsman,Yossi Rosenwaks,Gary Hodes,David Cahen +7 more
TL;DR: Effective diffusion lengths, LD, show that holes are extracted significantly more efficiently than electrons in CH3NH3PbI3-based solar cells, explaining why these cells require mesoporous electron conductors, while 3-Clx ones, where LD values are comparable for both charge types, do not.
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Elucidating the charge carrier separation and working mechanism of CH 3 NH 3 PbI 3− x Cl x perovskite solar cells
TL;DR: This work addresses the fundamental issue of how these cells work by applying a scanning electron microscopy-based technique to cell cross-sections, and shows the presence of two prime high efficiency locations, one at/near the absorber/hole-blocking-layer, and the second at/ near the absorbers/electron- blocking-layer interfaces, with the former more pronounced.
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Why Lead Methylammonium Tri-Iodide Perovskite-Based Solar Cells Require a Mesoporous Electron Transporting Scaffold (but Not Necessarily a Hole Conductor)
Eran Edri,Saar Kirmayer,Alex Henning,Sabyasachi Mukhopadhyay,Konstantin Gartsman,Yossi Rosenwaks,Gary Hodes,David Cahen +7 more
TL;DR: In this paper, electron beam-induced current (EBIC) profile was used to characterize CH3NH3PbI3-based solar cells and compared to CH 3NH3pbI-3-xClx ones.
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High Open-Circuit Voltage Solar Cells Based on Organic–Inorganic Lead Bromide Perovskite
TL;DR: Judicious selection of the perovskite lead halide-based absorber, matching organic hole conductor, and contacts, a cell with a ∼ 1.3 V open circuit voltage was made and provides a general guideline for additional improvement of cell performance.