Open AccessImproving the Stability and Efficiency of Perovskite Solar Cells by a Bidentate Anilinium Salt
Author(s) -
Lucas Scalon,
Rodrigo Szostak,
Francineide Lopes de Araújo,
Karla F. Adriani,
Julian F. R. V. Silveira,
Willian X. C. Oliveira,
Juarez L. F. Da Silva,
Caio C. Oliveira,
Ana F. Nogueira
Publication year - 2022
Publication title -
jacs au
Language(s) - English
Resource type - Journals
ISSN - 2691-3704
DOI - 10.1021/jacsau.2c00151
Subject(s) - passivation , perovskite (structure) , salt (chemistry) , halide , protonation , inorganic chemistry , denticity , chemistry , ion , materials science , chemical engineering , nanotechnology , crystallography , organic chemistry , crystal structure , layer (electronics) , engineering
We report improvement in the perovskite solar cell efficiency and stability after passivation with an organic molecule decorated with two anilinium cations. We compare this salt with its neutral analog and found that the change in the electron density distribution upon protonation and the presence of the halide anion are key to explaining the better passivation ability of the salt. In addition, we show that the counteranion has a significant impact on the performance of the device.