Volume 19, Issue 40 2303159
Research Article

A Newly Crosslinked-double Network PEDOT:PSS@PEGDMA toward Highly-Efficient and Stable Tin-Lead Perovskite Solar Cells

Tengfei Kong

Tengfei Kong

School of Materials Science and Engineering, State key laboratory of optoelectronic materials and technology, Guangdong Provincial Key Laboratory of low carbon chemistry and process energy conservation, Guangzhou Key Laboratory of Flexible Electronic Materials and Wearable Devices, Sun Yat-sen University, Guangzhou, 510275 P. R. China

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Jing Song

Jing Song

School of Materials Science and Engineering, State key laboratory of optoelectronic materials and technology, Guangdong Provincial Key Laboratory of low carbon chemistry and process energy conservation, Guangzhou Key Laboratory of Flexible Electronic Materials and Wearable Devices, Sun Yat-sen University, Guangzhou, 510275 P. R. China

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Yang Zhang

Yang Zhang

School of Materials Science and Engineering, State key laboratory of optoelectronic materials and technology, Guangdong Provincial Key Laboratory of low carbon chemistry and process energy conservation, Guangzhou Key Laboratory of Flexible Electronic Materials and Wearable Devices, Sun Yat-sen University, Guangzhou, 510275 P. R. China

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Eng Liang Lim

Eng Liang Lim

School of Materials Science and Engineering, State key laboratory of optoelectronic materials and technology, Guangdong Provincial Key Laboratory of low carbon chemistry and process energy conservation, Guangzhou Key Laboratory of Flexible Electronic Materials and Wearable Devices, Sun Yat-sen University, Guangzhou, 510275 P. R. China

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Xufu Liu

Xufu Liu

School of Materials Science and Engineering, State key laboratory of optoelectronic materials and technology, Guangdong Provincial Key Laboratory of low carbon chemistry and process energy conservation, Guangzhou Key Laboratory of Flexible Electronic Materials and Wearable Devices, Sun Yat-sen University, Guangzhou, 510275 P. R. China

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Wolfgang Tress

Wolfgang Tress

ZHAW School of Engineering, Forschungsschwerpunkt Organic Electronics & Photovoltaics, Technikumstrasse 71, Winterthur, 8400 Switzerland

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Dongqin Bi

Corresponding Author

Dongqin Bi

School of Materials Science and Engineering, State key laboratory of optoelectronic materials and technology, Guangdong Provincial Key Laboratory of low carbon chemistry and process energy conservation, Guangzhou Key Laboratory of Flexible Electronic Materials and Wearable Devices, Sun Yat-sen University, Guangzhou, 510275 P. R. China

E-mail: [email protected]

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First published: 09 June 2023
Citations: 5

Abstract

Until now, poly(3,4-ethylenedioxythiophene):poly(styrensulfonate) (PEDOT:PSS) is widely used in Sn–Pb perovskite solar cells (PSCs) due to its many advantages, including high optical transparency, suitable conductivity, superior wettability, and so on. However, the acidic and hydroscopic properties of the PSS component, as well as the incongruous energy level of the hole transport layer (HTL), may lead to unsatisfying interface properties and decreased device performance. Herein, by adding polyethylene glycol dimethacrylate (PEGDMA) into PEDOT:PSS, a newly crosslinked-double-network obtain of PEDOT:PSS@PEGDMA film, which could not only optimize nucleation and crystallinity of Sn–Pb perovskite films, but also suppress defect density and optimize energy level alignment at the HTL/perovskite interface. As a result, the achieves highly efficient and stable mixed Sn–Pb PSCs with an encouraging power conversion efficiency of 20.9%. Additionally, the device can maintain good stability under N2 atmosphere.

Conflict of Interest

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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