Open AccessEffects of C 4 H 9 NH 3 Br additive on properties of CH 3 NH 3 PbBr 3 perovskite thin films
Author(s) -
Yang Yanchun,
Yu Sheng,
Cao Yongjun,
Li Wei
Publication year - 2020
Publication title -
micro and nano letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.25
H-Index - 31
ISSN - 1750-0443
DOI - 10.1049/mnl.2019.0777
Subject(s) - perovskite (structure) , nanocrystal , thin film , sintering , materials science , doping , grain size , mineralogy , crystal (programming language) , analytical chemistry (journal) , crystallography , chemical engineering , chemistry , nanotechnology , metallurgy , optoelectronics , engineering , chromatography , computer science , programming language
Short‐chain C 4 H 9 NH 3 Br compound can be used as the surface capping to synthesise CH 3 NH 3 PbBr 3 perovskite nanocrystal. In this work, employed as the surface ligand of CH 3 NH 3 PbBr 3 perovskite thin films, the influence of C 4 H 9 NH 3 Br additive on the morphology and optical properties of CH 3 NH 3 PbBr 3 thin films were studied systematically. As the doping ratio of C 4 H 9 NH 3 Br compound increases, the growth of CH 3 NH 3 PbBr 3 crystal grain can be controlled, and optical properties of CH 3 NH 3 PbBr 3 thin films can be improved. The best quality can be obtained with 20% of C 4 H 9 NH 3 Br. Finally, the optimal sintering conditions of CH 3 NH 3 PbBr 3 perovskite thin films are determined at 80°C, 4 min.