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ARTICLE
Grain Boundary Passivation Modulated by Molecular Doping for High-Performance Perovskite Solar Cells
Yangyang Hao, Yue Liu*, Guorui Cao*
College of Chemical and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
* Corresponding Authors: Guorui Cao. Email: ; Yue Liu. Email:
(This article belongs to the Special Issue: Perovskite Solar Cells)
Journal of Renewable Materials 2022, 10(12), 3505-3519. https://doi.org/10.32604/jrm.2022.023122
Received 11 April 2022; Accepted 12 May 2022; Issue published 14 July 2022
Abstract
Aiming to reduce the defects of perovskite film and improve carrier transport, an organic small molecule, benzo
[d]isothiazol-3(2H)-one 1,1-dioxide (OBS), is introduced as an additive in the solution-processing of perovskite
and prepare uniform perovskite films with a continuous distribution of OBS at grain boundaries. Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy are conducted to reveal the interactions of
hydrogen bonding and coordination bonding between OBS and perovskite. Various characterizations (including
X-ray diffraction, UV-vis spectroscopy, electrochemical impedance spectroscopy, etc.) are conducted to uncover
the effect of OBS on device performance. Consequently, high efficiency of 23.26% is obtained for the OBS-treated
device, while the control device shows only a companion efficiency of 21.60%.
Graphical Abstract
Keywords
Cite This Article
APA Style
Hao, Y., Liu, Y., Cao, G. (2022). Grain boundary passivation modulated by molecular doping for high-performance perovskite solar cells. Journal of Renewable Materials, 10(12), 3505-3519. https://doi.org/10.32604/jrm.2022.023122
Vancouver Style
Hao Y, Liu Y, Cao G. Grain boundary passivation modulated by molecular doping for high-performance perovskite solar cells. J Renew Mater. 2022;10(12):3505-3519 https://doi.org/10.32604/jrm.2022.023122
IEEE Style
Y. Hao, Y. Liu, and G. Cao "Grain Boundary Passivation Modulated by Molecular Doping for High-Performance Perovskite Solar Cells," J. Renew. Mater., vol. 10, no. 12, pp. 3505-3519. 2022. https://doi.org/10.32604/jrm.2022.023122