Oriented wide-bandgap perovskites for monolithic silicon-based tandems with over 1000 hours operational stability

Yuxin Yao, Biao Li, Degong Ding, Chenxia Kan, Pengjie Hang (), Daoyong Zhang, Zechen Hu, Zhenyi Ni (), Xuegong Yu () and Deren Yang ()
Additional contact information
Yuxin Yao: Zhejiang University
Biao Li: Zhejiang University
Degong Ding: Zhejiang University
Chenxia Kan: Zhejiang University
Pengjie Hang: Zhejiang University
Daoyong Zhang: Zhejiang University
Zechen Hu: Zhejiang University
Zhenyi Ni: Zhejiang University
Xuegong Yu: Zhejiang University
Deren Yang: Zhejiang University

Nature Communications, 2025, vol. 16, issue 1, 1-12

Abstract: Abstract The instability of hybrid wide-bandgap (WBG) perovskite materials (with bandgap larger than 1.68 eV) still stands out as a major constraint for the commercialization of perovskite/silicon tandem photovoltaics, yet its correlation with the facet properties of WBG perovskites has not been revealed. Herein, we combine experiments and theoretical calculations to comprehensively understand the facet-dependent instability of WBG perovskites. We find that the (111) facet, which owned higher ion-migration activation energy and lower diffusion constant, endured instability better than the (100) facet in multi-component 1.68 eV perovskites under electron beam or light irradiations, where excess charge carriers facilitate halide migrations and thereafter phase segregations. By introducing trioctylphosphine oxide into the WBG perovskite, a strong oriented growth of the (111) facet for the WBG perovskite film was realized which exhibited enhanced operational stability against light illumination. The fabricated one square centimeter area perovskite/silicon tandems with n-i-p and p-i-n configurations deliver efficiencies of 28.03 % and 30.78 % (certified 30.26 %), respectively, with both configurations exhibiting excellent operational stability at the maximum power point (MPP) with T95 > 1000 h.

Date: 2025
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/s41467-024-55377-6 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:16:y:2025:i:1:d:10.1038_s41467-024-55377-6

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

DOI: 10.1038/s41467-024-55377-6

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 ().