Improved interface performance of all inorganic carbon based CsPbI2Br perovskite solar cells using CuxO

被引：0

作者：

Sun B. ^{[1
]}

Zheng S. ^{[2
]}

Chi W. ^{[1
]}

Chen K. ^{[1
]}

Zhang X. ^{[1
]}

Xu K. ^{[1
]}

Chen H. ^{[1
]}

Xie Y. ^{[1
]}

机构：

[1] Key Laboratory of Oil & Gas Fine Chemicals, Ministry of Education and Xinjiang Uyghur Autonomous Region, College of Chemical Engineering, Xinjiang University, Xinjiang

[2] School of New Energy and Materials, Southwest Petroleum University, Chengdu

来源：

Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica | 2023年 / 40卷 / 05期

基金：

中国国家自然科学基金;

关键词：

conversion efficiency; CsPbI[!sub]2[!/sub]Br; Cu[!sub]x[!/sub]O; inorganic hole transport material; inorganic perovskite solar cells;

D O I：

10.13801/j.cnki.fhclxb.20221213.002

中图分类号：

学科分类号：

摘要：

All inorganic carbon-based CsPbI2Br perovskite solar cells (C-PSCs) have lower photoelectric conversion efficiency due to poor contact performance and mismatch of energy band between carbon electrode and perovskite laye. In this paper, two kinds of regular octahedral CuxO with different morphologies and structures were prepared by a simple glucose reduction method combined with calcination technology. As inorganic hole transport materials, C-PSCs with the structure of conductive glass (FTO)/SnO2/CsPbI2Br/CuO/C were prepared and the influence of morphologies and structures on the photoelectric performance was studied. The results show that CuxO has good chemical stability and p-type carrier transport characteristics, which can effectively enhance the interface contact between CsPbI2Br and carbon electrode, improve the carrier transport performance, reduce charge recombination, and extend the photoelectron life. The highest photoelectric conversion efficiency of CsPbI2Br based C-PSCs devices based on Cu2O and CuO is 11.62% and 13.22%, respectively, which is 19.5% and 36.0% higher than that of blank devices. In addition, by adding Cu2O and CuO, the long-term stability of the device in the air is also significantly improved. This work has a certain significance for improving the performance of CsPbI2Br based C-PSCs. © 2023 Beijing University of Aeronautics and Astronautics (BUAA). All rights reserved.

引用

页码：2818 / 2826

页数：8

共 23 条

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