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Perovskite Photovoltaics: Hybrid Perovskite Thin‐Film Photovoltaics: In Situ Diagnostics and Importance of the Precursor Solvate Phases (Adv. Mater. 2/2017)
Author(s) -
Munir Rahim,
Sheikh Arif D.,
Abdelsamie Maged,
Hu Hanlin,
Yu Liyang,
Zhao Kui,
Kim Taesoo,
Tall Omar El,
Li Ruipeng,
Smilgies DetlefM.,
Amassian Aram
Publication year - 2017
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201770014
Subject(s) - materials science , perovskite (structure) , photovoltaics , halide , chemical engineering , thin film , solvent , in situ , spinning , nanotechnology , photovoltaic system , inorganic chemistry , organic chemistry , polymer chemistry , chemistry , ecology , engineering , biology
The solidification of hybrid perovskite (MAPbX 3 , X = I, Br, Cl) inks is studied in situ by A. Amassian and co‐workers in article 1604113, revealing a remarkably complex process mediated by strong solvent‐solute interactions, the outcome of which is halide‐dependent. The ink is shown to solidify within 15–20s of spinning, forming a highly solvated (60–70 vol%) precursor phase. Crystalline order of the precursor, or lack thereof, strongly impacts the morphological outcome of thermal conversion and the reproducibility of solar cells.