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Eco‐Friendly Spray Deposition of Perovskite Films on Macroscale Textured Surfaces
Author(s) -
Sansoni Simone,
De Bastiani Michele,
Aydin Erkan,
Ugur Esma,
Isikgor Furkan Halis,
AlZahrani Areej,
Lamberti Francesco,
Laquai Frederic,
Meneghetti Moreno,
De Wolf Stefaan
Publication year - 2020
Publication title -
advanced materials technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.184
H-Index - 42
ISSN - 2365-709X
DOI - 10.1002/admt.201901009
Subject(s) - perovskite (structure) , materials science , wafer , fabrication , deposition (geology) , silicon , heterojunction , halide , thin film , tandem , coating , solar cell , photovoltaics , environmentally friendly , nanotechnology , chemical engineering , photovoltaic system , optoelectronics , composite material , inorganic chemistry , chemistry , medicine , alternative medicine , biology , ecology , paleontology , sediment , engineering , pathology
An innovative sequential eco‐friendly spray coating (SEF‐SC) technique is developed to uniformly deposit metal halide perovskite films on macroscale textured surfaces, such as textured crystalline‐silicon wafers. Contrasting with previous work on spray‐coated perovskite solar cells, the method presented in this work completely avoids the use of toxic and dangerous solvents. Both MAPbI 3 and CsFAMAPbI 3− x Br x perovskite films deposited by SEF‐SC show excellent optoelectronic properties and no phase segregation, even when synthesized in ambient conditions. Uniform perovskite coatings are obtained on textured‐silicon heterojunction solar cells underlining the promise of this method, which holds the potential for scalable wet processing of perovskites on rough substrates, such as for low‐cost perovskite/silicon tandem solar cell fabrication.