We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Strong connection between PVK and ETL induced by an anti-allergic agent interface for high-quality PSCs.
- Authors
Ni, Yafei; Li, Haoyue; Li, Haimin; Zhuang, Jia; Liu, Xingchong; Zheng, Ronghong; Zhao, Shuangshuang; Zhang, Hua; Wang, Hanyu
- Abstract
It is crucial to promote crystallinity of active layer to improve stability and restrain non-radiative carrier recombination for high-quality perovskite solar cells (PSCs). Here, Chlorpheniramine Maleate (CM) interface layer is introduced between SnO2 electron transport layer (ETL) and perovskite (PVK) film. The esterification between carboxyl group in CM and hydroxyl group on the surface of SnO2 greatly enhances the surface evenness of SnO2, leading to enhanced smoothness of ETL; thus, the crystallinity of perovskite (PVK) film is validly improved. Meanwhile, the lone pair electrons of nitrogen element in pyridine group in CM coordinate with vacant orbit of Pb2+ in perovskite that validly decreases the defects of active layer. Thus, the CM interface results into strong connection between PVK and ETL, which greatly enhances the performance and stability of PSCs. After CM modification, the PCE of the PSCs is increased from 19.29 to 21.12%. In addition, unencapsulated CM-modified devices demonstrate much better humidity stability than unmodified one due to high quality of the perovskite film. After 100 h under RH = 70 ± 5% in air condition, the SnO2-CM based device still remains 60% of its initial PCE, while the PCE of unmodified device totally breaks down after 72 h.
- Subjects
ANTIALLERGIC agents; PRODUCTION sharing contracts (Oil &; gas); GROUP 15 elements; HYDROXYL group; ELECTRON transport; CARBOXYL group
- Publication
Journal of Materials Science: Materials in Electronics, 2022, Vol 33, Issue 9, p6456
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-022-07817-6