Regulation of Wide Bandgap Perovskite by Rubidium Thiocyanate for Efficient Silicon/Perovskite Tandem Solar Cells

Détails bibliographiques
Publié dans:	Advanced materials (Deerfield Beach, Fla.). - 1998. - 36(2024), 50 vom: 22. Dez., Seite e2407681
Auteur principal:	Wang, Zhenhan (Auteur)
Autres auteurs:	Han, Zhaoyang, Chu, Xinbo, Zhou, Haitao, Yu, Shiqi, Zhang, Qian, Xiong, Zhuang, Qu, Zihan, Tian, Hongbo, Wang, Wei, Wan, Fang, Yuan, Yongbo, Lin, Yun, Yang, Yingguo, Zhang, Xingwang, Jiang, Qi, You, Jingbi
Format:	Article en ligne
Langue:	English
Publié:	2024
Accès à la collection:	Advanced materials (Deerfield Beach, Fla.)
Sujets:	Journal Article high efficiency perovskite/silicon tandem solar cells phase stability wide bandgap perovskite

Description
Résumé:	© 2024 Wiley‐VCH GmbH. Developing high-quality wide bandgap (WBG) perovskites with ≈1.7 eV bandgap (Eg) is critical to couple with silicon and create efficient silicon/perovskite tandem devices. The sufferings of large open-circuit voltage (VOC) loss and unstable power output under operation continuously highlight the criticality to fully develop high-quality WBG perovskite films. In this study, rubidium and thiocyanate as additive regulators in WBG perovskites are incorporated, significantly reducing non-radiative recombination, ion-migration, and phase segregation. The optimized 1.66 eV Eg perovskite solar cells achieved state-of-art 1.3 V VOC (0.36 V deficit), and delivered a stabilized power conversion efficiency of 24.3%, along with good device stability (20% degradation (T80) after over 994 h of operation under 1 sun at ≈65°C). When integrated with a flat front side silicon cell, silicon/perovskite two-terminal tandem device (30% efficient) is obtained with a 1.97 V VOC, and T90 operational lifetime of more than 600 h at room temperature
Description:	Date Revised 12.12.2024 published: Print-Electronic Citation Status PubMed-not-MEDLINE
ISSN:	1521-4095
DOI:	10.1002/adma.202407681