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Interface Engineering Driven Stabilization of Halide Perovskites against Moisture, Heat, and Light for Optoelectronic Applications
Author(s) -
Singh Aditya Narayan,
Kajal Sandeep,
Kim Junu,
Jana Atanu,
Kim Jin Young,
Kim Kwang S.
Publication year - 2020
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.202000768
Subject(s) - materials science , passivation , perovskite (structure) , halide , fabrication , ionic bonding , moisture , light emitting diode , diode , optoelectronics , nanotechnology , chemical engineering , composite material , ion , layer (electronics) , inorganic chemistry , chemistry , medicine , alternative medicine , organic chemistry , pathology , engineering
Moisture, heat, and light instabilities of halide perovskites (HPs) represent a serious Achilles' heel that must be overcome, to enable future advancements in perovskite‐based optoelectronic devices such as solar cells and light‐emitting diodes. The instabilities are attributed to the unavoidable fragile ionic bonding between cationic and anionic parts of HPs during their formation. Surface passivation of HPs by various surface‐passivating materials has proven to be an attractive approach to stabilize perovskites against moisture, heat, and light, keeping intact their structural integrity and ionic bonding. Herein, the experimental and theoretical background for degradation mechanisms of HPs is reviewed along with various surface passivating materials to stabilize HPs. Finally, the existing challenges associated with thin‐film and device fabrication and an outlook for improving the stability of perovskites in optoelectronics are presented