Intrinsic defect compensation in the space charge region enables cadmium-free kesterite solar cells to achieve 13.9% certified efficiency

Energy & Environmental Science 2026

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Authors: Yonggang Zhao, Shuo Chen, Jiangjian Shi, Shurong Wang, Jia Yang, Zhenghua Su, Zhuanghao Zheng, Hongli Ma, Xianghua Zhang, Guangxing Liang
DOI: 10.1039/d6ee00550k
Cited by: 11
References: 46

Abstract

Ventilated-air junction heat treatment (JHT) promotes Zn diffusion across the CZTSSe/ZTO interface, leading to intrinsic defect compensation and optimized band alignment, thereby enabling a certified PCE of 13.90% in Cd-free CZTSSe solar cells.

Fields of Study & Subjects

Chalcogenide Semiconductor Thin Films Silicon and Solar Cell Technologies solar cell performance optimization

Publication details

Journal / source
Energy & Environmental Science
Publisher
Royal Society of Chemistry (RSC)
Volume
19
Issue
7
Pages
2356–2366
Publication date
1 January 2026
Language
EN