Premium
Solvent Engineering as a Vehicle for High Quality Thin Films of Perovskites and Their Device Fabrication
Author(s) -
Rezaee Ehsan,
Zhang Wei,
Silva S. Ravi P.
Publication year - 2021
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.202008145
Subject(s) - fabrication , perovskite (structure) , materials science , energy conversion efficiency , crystallinity , deposition (geology) , nanotechnology , halide , thin film , perovskite solar cell , chemical engineering , layer (electronics) , optoelectronics , inorganic chemistry , chemistry , composite material , medicine , alternative medicine , pathology , engineering , paleontology , sediment , biology
Abstract Organic–inorganic halide perovskite solar cells (PSCs) have shown a significant growth in power conversion efficiencies (PCEs) during last decade. Progress in device architecture and high‐quality perovskite film fabrication has led to an incredible efficiency over 25% in close to a decade. Developments in solution‐based thin film deposition techniques for perovskite layer preparation in PSCs provide low cost and ease of process for their manufacturing, making them a potential contender in future solar energy harvesting technologies. From small area single solar cells to large area perovskite solar modules, solvents play crucial roles in thin film quality and therefore, the device performance and stability. A comprehensive overview of solvent engineering toward achieving the highest qualities for perovskite light absorbing layers with various compositions and based on different fabrication processes is provided in this review. The mechanisms indicating the essential roles a solvent, or a solvent mixture can play to improve the crystallinity, uniformity, coverage and surface roughness of the perovskite films, are discussed. Finally, the role of solvent engineering in transferring from small area laboratory scale PSC fabrication to large area perovskite film deposition processes is explored.