https://scholars.lib.ntu.edu.tw/handle/123456789/631482
標題: | A self-arranged metal-organic polyhedron/fullerene asymmetric structure improves the performance of inverted perovskite solar cells | 作者: | Yu, Ming Hsuan Han, Po Chun Lee, Chia Chen Ni, I. Chih Zhu, Zonglong Kurmaev, Ernst Z. Furukawa, Shuhei KEVIN CHIA-WEN WU CHU-CHEN CHUEH |
關鍵字: | SURFACE PASSIVATION; MOBILITIES; DEFECTS | 公開日期: | 7-九月-2022 | 出版社: | ROYAL SOC CHEMISTRY | 卷: | 10 | 期: | 39 | 起(迄)頁: | 14542 | 來源出版物: | Journal of Materials Chemistry C | 摘要: | Developing new chemistry to passivate the defects in the perovskite layer is highly desired in researching high-performance and stable perovskite solar cells (PVSCs). We herein explore supramolecular chemistry to passivate the perovskite film by entailing the employment of robust metal-organic polyhedra (MOPs), [Rh2(bdc)2]12 (HRhMOP; bdc = benzene-1,3-dicarboxylate). HRhMOP is found to establish well-defined packing voids to well accommodate the filling of [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) that is often used as an electron transport layer (ETL) in PVSCs. Detailed analysis suggests that HRhMOP forms an asymmetric distribution in the PCBM ETL, and the self-arranged HRhMOP at the ETL/perovskite interface considerably suppresses the Pb0 formation and induces a larger band bending effect to facilitate interfacial charge transport. Synergetically combined effects give rise to a 9% enhancement in power conversion efficiency (PCE) of the derived inverted PVSCs. The successful utilization of MOPs could lead to the further development of supramolecular chemistry in state-of-the-art PVSCs. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/631482 | ISSN: | 2050-7526 | DOI: | 10.1039/d2tc02110b |
顯示於: | 化學工程學系 |
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