How Important Is the Organic Part of Lead Halide Perovskite Photovoltaic Cells? Efficient CsPbBr3 Cells | Zendy

Michael Kulbak | Zendy; David Cahen | Zendy; Gary Hodes | Zendy

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How Important Is the Organic Part of Lead Halide Perovskite Photovoltaic Cells? Efficient CsPbBr₃ Cells

Author(s) -

Michael Kulbak,

David Cahen,

Gary Hodes

Publication year - 2015

Publication title -

the journal of physical chemistry letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.563

H-Index - 203

ISSN - 1948-7185

DOI - 10.1021/acs.jpclett.5b00968

Subject(s) - perovskite (structure) , halide , photovoltaic system , lead (geology) , materials science , energy conversion efficiency , optoelectronics , inorganic chemistry , chemistry , electrical engineering , organic chemistry , engineering , geology , geomorphology

Hybrid organic-inorganic lead halide perovskite photovoltaic cells have already surpassed 20% conversion efficiency in the few years that they have been seriously studied. However, many fundamental questions still remain unanswered as to why they are so good. One of these is "Is the organic cation really necessary to obtain high quality cells?" In this study, we show that an all-inorganic version of the lead bromide perovskite material works equally well as the organic one, in particular generating the high open circuit voltages that are an important feature of these cells.

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