@Article{jrm.2022.023122,
AUTHOR = {Yangyang Hao, Yue Liu, Guorui Cao},
TITLE = {Grain Boundary Passivation Modulated by Molecular Doping for High-Performance Perovskite Solar Cells},
JOURNAL = {Journal of Renewable Materials},
VOLUME = {10},
YEAR = {2022},
NUMBER = {12},
PAGES = {3505--3519},
URL = {http://www.techscience.com/jrm/v10n12/48830},
ISSN = {2164-6341},
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%.},
DOI = {10.32604/jrm.2022.023122}
}