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

SUN Bei; ZHENG Shenshen; CHI Wenhui; CHEN Kanglai; ZHANG Xiang; XU Kunyu; CHEN Huamei; XIE Yahong

doi:10.13801/j.cnki.fhclxb.20221213.002

Volume 40 Issue 5

May 2023

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Article Navigation > Acta Materiae Compositae Sinica > 2023 > 40(5): 2818-2826

SUN Bei, ZHENG Shenshen, CHI Wenhui, et al. Improved interface performance of all inorganic carbon based CsPbI2Br perovskite solar cells using CuxO[J]. Acta Materiae Compositae Sinica, 2023, 40(5): 2818-2826. doi: 10.13801/j.cnki.fhclxb.20221213.002

Citation:

SUN Bei, ZHENG Shenshen, CHI Wenhui, et al. Improved interface performance of all inorganic carbon based CsPbI₂Br perovskite solar cells using Cu_xO[J]. Acta Materiae Compositae Sinica, 2023, 40(5): 2818-2826. doi: 10.13801/j.cnki.fhclxb.20221213.002

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

doi: 10.13801/j.cnki.fhclxb.20221213.002

SUN Bei^{1, 孙},
ZHENG Shenshen^{2, 孙},
CHI Wenhui¹,
CHEN Kanglai¹,
ZHANG Xiang¹,
XU Kunyu¹,
CHEN Huamei¹,
XIE Yahong^{1
,
,}

1.
Key Laboratory of Oil & Gas Fine Chemicals, Ministry of Education and Xinjiang Uyghur Autonomous Region, College of Chemical Engineering, Xinjiang University, Xinjiang 830046, China
2.
School of New Energy and Materials, Southwest Petroleum University, Chengdu 610599, China

Funds: Xinjiang University's 2021 Autonomous Region Level Innovation Training Program for College Students (20191003209); National Natural Science Foundation of China (52162035)

Received Date: 2022-10-19
Accepted Date: 2022-12-01
Rev Recd Date: 2022-11-10

Available Online: 2022-12-14

Publish Date: 2023-05-15

Abstract

Abstract

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 Cu_xO 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 Cu_xO 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.
- inorganic perovskite solar cells,
- Cu_xO,
- CsPbI₂Br,
- conversion efficiency,
- inorganic hole transport material
Long Abstrsct
Innovation Points

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References(23)

References

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