 Perovskite/silicon tandem solar cells with bilayer interface passivationJiang Liu (),
Yongcai He,
Lei Ding,
Hua Zhang,
Qiaoyan Li,
Lingbo Jia,
Jia Yu,
Ting Wai Lau,
Minghui Li,
Yuan Qin,
Xiaobing Gu,
Fu Zhang,
Qibo Li,
Ying Yang,
Shuangshuang Zhao,
Xiaoyong Wu,
Jie Liu,
Tong Liu,
Yajun Gao,
Yonglei Wang,
Xin Dong,
Hao Chen,
Ping Li,
Tianxiang Zhou,
Miao Yang,
Xiaoning Ru,
Fuguo Peng,
Shi Yin,
Minghao Qu,
Dongming Zhao,
Zhiguo Zhao,
Menglei Li,
Penghui Guo,
Hui Yan,
Chuanxiao Xiao,
Ping Xiao (),
Jun Yin (),
Xiaohong Zhang (),
Zhenguo Li (),
Bo He () and
Xixiang Xu ()
Nature, 2024, vol. 635, issue 8039, 596-603 Abstract: Abstract Two-terminal monolithic perovskite/silicon tandem solar cells demonstrate huge advantages in power conversion efficiency compared with their respective single-junction counterparts1,2. However, suppressing interfacial recombination at the wide-bandgap perovskite/electron transport layer interface, without compromising its superior charge transport performance, remains a substantial challenge for perovskite/silicon tandem cells3,4. By exploiting the nanoscale discretely distributed lithium fluoride ultrathin layer followed by an additional deposition of diammonium diiodide molecule, we have devised a bilayer-intertwined passivation strategy that combines efficient electron extraction with further suppression of non-radiative recombination. We constructed perovskite/silicon tandem devices on a double-textured Czochralski-based silicon heterojunction cell, which featured a mildly textured front surface and a heavily textured rear surface, leading to simultaneously enhanced photocurrent and uncompromised rear passivation. The resulting perovskite/silicon tandem achieved an independently certified stabilized power conversion efficiency of 33.89%, accompanied by an impressive fill factor of 83.0% and an open-circuit voltage of nearly 1.97 V. To the best of our knowledge, this represents the first reported certified efficiency of a two-junction tandem solar cell exceeding the single-junction Shockley–Queisser limit of 33.7%. Date: 2024 Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:nat:nature:v:635:y:2024:i:8039:d:10.1038_s41586-024-07997-7 Ordering information: This journal article can be ordered from DOI: 10.1038/s41586-024-07997-7 Access Statistics for this article Nature is currently edited by Magdalena Skipper More articles in Nature from Nature |
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