Issue 41, 2023
From the journal:

Chemical Communications

Hexachlorotriphosphazene-assisted buried interface passivation for stable and efficient wide-bandgap perovskite solar cells†

Ruyue Wang,‡a   Minghua Li,‡a   Zongwen Ma,a   Zhangwei He,a   Yiman Dong,a   Yuling Zhang,a   Zhiyang Xu, ORCID logo a   Gangfeng Sua  and  Zhan'ao Tan ORCID logo *a  

* Corresponding authors

a Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
E-mail: tanzhanao@mail.buct.edu.cn

Abstract

Large open-circuit voltage (Voc) loss is the main issue limiting the efficiency improvement in wide bandgap perovskite solar cells (PerSCs). Herein, a facile buried interface treatment by hexachlorotriphosphazene is developed to suppress the Voc loss. The PerSCs include a [Cs0.22FA0.78Pb(I0.85Br0.15)3]0.97(MAPbCl3)0.03 (1.67 eV) absorber and deliver an efficiency of 21.47% and a Voc of 1.21 V (Voc loss of 0.46 V). More importantly, the unencapsulated PerSCs maintain 90% of the initial efficiency after aging 500 h in N2.

Graphical abstract: Hexachlorotriphosphazene-assisted buried interface passivation for stable and efficient wide-bandgap perovskite solar cells

  • This article is part of the themed collection: Perovskites
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Article information

DOI
https://doi.org/10.1039/D3CC01100C
Article type
Communication
Submitted
06 Mar 2023
Accepted
19 Apr 2023
First published
20 Apr 2023

Chem. Commun., 2023,59, 6255-6258

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Hexachlorotriphosphazene-assisted buried interface passivation for stable and efficient wide-bandgap perovskite solar cells

R. Wang, M. Li, Z. Ma, Z. He, Y. Dong, Y. Zhang, Z. Xu, G. Su and Z. Tan, Chem. Commun., 2023, 59, 6255 DOI: 10.1039/D3CC01100C

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