TY - JOUR
T1 - Covalent bonding strategy to enable non-volatile organic cation perovskite for highly stable and efficient solar cells
AU - Liu, Kai
AU - Rafique, Saqib
AU - Musolino, Stefania F.
AU - Cai, Zenghua
AU - Liu, Fengcai
AU - Li, Xiaoguo
AU - Yuan, Yongbo
AU - Bao, Qinye
AU - Yang, Yingguo
AU - Chu, Jiao
AU - Peng, Xinxin
AU - Nie, Cengao
AU - Yuan, Wei
AU - Zhang, Sidi
AU - Wang, Jiao
AU - Pan, Yiyi
AU - Zhang, Haijuan
AU - Cai, Xia
AU - Shi, Zejiao
AU - Li, Chongyuan
AU - Wang, Haoliang
AU - Deng, Liangliang
AU - Hu, Tianxiang
AU - Wang, Yaxin
AU - Wang, Yanyan
AU - Chen, Shiyou
AU - Shi, Lei
AU - Ayala, Paola
AU - Wulff, Jeremy E.
AU - Yu, Anran
AU - Zhan, Yiqiang
N1 - Publisher Copyright:
© 2023 Elsevier Inc.
PY - 2023/5/17
Y1 - 2023/5/17
N2 - The loss of organic components from perovskites has inevitably triggered a series of undesirable results, including ion migration, increased defects, and organic vapors, which severely limit the performance of perovskite solar cells (PSCs) and impede their progress toward commercial applications. To circumvent this issue, we report a novel covalent bonding strategy by employing bis-diazirine (BD) molecules to covalently bond organic cations of perovskites. Experimental and ab initio simulation results confirmed the efficacy of BD molecules to strongly immobilize the organic cations and eventually enhance the thermal, illumination, and electrical bias resistance properties of perovskites. Consequently, highly efficient (24.36% efficiency, certified 24.02%) and ultra-stable PSCs were realized, which retained 98.6% of their initial efficiency even after 1,000 h of operational tests.
AB - The loss of organic components from perovskites has inevitably triggered a series of undesirable results, including ion migration, increased defects, and organic vapors, which severely limit the performance of perovskite solar cells (PSCs) and impede their progress toward commercial applications. To circumvent this issue, we report a novel covalent bonding strategy by employing bis-diazirine (BD) molecules to covalently bond organic cations of perovskites. Experimental and ab initio simulation results confirmed the efficacy of BD molecules to strongly immobilize the organic cations and eventually enhance the thermal, illumination, and electrical bias resistance properties of perovskites. Consequently, highly efficient (24.36% efficiency, certified 24.02%) and ultra-stable PSCs were realized, which retained 98.6% of their initial efficiency even after 1,000 h of operational tests.
KW - bis-diazirine molecules
KW - covalent bonding strategy
KW - operational stability
KW - organic cations
UR - https://www.scopus.com/pages/publications/85158871046
U2 - 10.1016/j.joule.2023.03.019
DO - 10.1016/j.joule.2023.03.019
M3 - 文章
AN - SCOPUS:85158871046
SN - 2542-4351
VL - 7
SP - 1033
EP - 1050
JO - Joule
JF - Joule
IS - 5
ER -