Efficient wide-bandgap perovskite photovoltaics with homogeneous halogen-phase distribution

Rui Wang, Xiaoyu Liu, Shan Yan, Ni Meng, Xinmin Zhao, Yu Chen, Hongxiang Li, Saif M. H. Qaid, Shaopeng Yang (), Mingjian Yuan and Tingwei He ()
Additional contact information
Rui Wang: Hebei University
Xiaoyu Liu: Hebei University
Shan Yan: Hebei University
Ni Meng: Hebei University
Xinmin Zhao: Hebei University
Yu Chen: CAS
Hongxiang Li: Sichuan University
Saif M. H. Qaid: King Saud University
Shaopeng Yang: Hebei University
Mingjian Yuan: Nankai University
Tingwei He: Hebei University

Nature Communications, 2024, vol. 15, issue 1, 1-11

Abstract: Abstract Wide-bandgap (WBG) perovskite solar cells (PSCs) are employed as top cells of tandem cells to break through the theoretical limits of single-junction photovoltaic devices. However, WBG PSCs exhibit severe open-circuit voltage (Voc) loss with increasing bromine content. Herein, inhomogeneous halogen-phase distribution is pointed out to be the reason, which hinders efficient extraction of carriers. We thus propose to form homogeneous halogen-phase distribution to address the issue. With the help of density functional theory, we construct a double-layer structure (D-2P) based on 2-(9H-Carbazol-9-yl)ethyl]phosphonic acid molecules to provide nucleation sites for perovskite crystallization. Homogeneous perovskite phase is achieved through bottom-up templated crystallization of halogen component. The efficient carrier extraction reduces the Shockley-Read-Hall recombination, resulting in a high Voc of 1.32 V. As a result, D-2P-treated device (1.75 eV) achieves a record power conversion efficiency of 20.80% (certified 20.70%), which is the highest value reported for WBG (more than 1.74 eV) PSCs.

Date: 2024
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/s41467-024-53344-9 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-53344-9

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-024-53344-9

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().