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Influence of Interface Morphology on Hysteresis in Vapor‐Deposited Perovskite Solar Cells
Author(s) -
Patel Jay B.,
WongLeung Jennifer,
Van Reenen Stephan,
Sakai Nobuya,
Wang Jacob Tse Wei,
Parrott Elizabeth S.,
Liu Mingzhen,
Snaith Henry J.,
Herz Laura M.,
Johnston Michael B.
Publication year - 2017
Publication title -
advanced electronic materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.25
H-Index - 56
ISSN - 2199-160X
DOI - 10.1002/aelm.201600470
Subject(s) - materials science , perovskite (structure) , morphology (biology) , hysteresis , interface (matter) , chemical engineering , composite material , condensed matter physics , contact angle , genetics , physics , engineering , biology , sessile drop technique
Hysteresis in the current–voltage characteristics of vapor‐deposited perovskite solar cells is shown to originate from an amorphous region of CH 3 NH 3 PbI 3 at the interface with the device's electron transport layer. Interface engineering is used to produce highly crystalline perovskite material at this interface which results in hysteresis‐free evaporated planar heterojunction solar cells.