Custom-tailored hole transport layer using oxalic acid for high-quality tin-lead perovskites and efficient all-perovskite tandems-Reference-Cited by-同舟云学术

Custom-tailored hole transport layer using oxalic acid for high-quality tin-lead perovskites and efficient all-perovskite tandems

Published:2024-04-19 Issue:16 Volume:10 Page:
ISSN:2375-2548
Container-title:Science Advances
language:en
Short-container-title:Sci. Adv.

Author:

Zhu Jingwei¹^ORCID,Xu Yuliang¹^ORCID,Luo Yi¹^ORCID,Luo Jincheng¹^ORCID,He Rui¹^ORCID,Wang Changlei²^ORCID,Wang Yang³^ORCID,Wei Kun⁴^ORCID,Yi Zongjin¹^ORCID,Gao Zhiyu¹^ORCID,Wang Juncheng¹^ORCID,You Jiayu¹^ORCID,Zhang Zhihao¹^ORCID,Lai Huagui⁵^ORCID,Ren Shengqiang¹^ORCID,Liu Xirui⁶^ORCID,Xiao Chuanxiao⁶⁷^ORCID,Chen Cong¹^ORCID,Zhang Jinbao⁴^ORCID,Fu Fan⁵^ORCID,Zhao Dewei¹^ORCID

Affiliation:

1. College of Materials Science and Engineering and Engineering Research Center of Alternative Energy Materials and Devices, Ministry of Education, Sichuan University, Chengdu 610065, China.

2. School of Optoelectronic Science and Engineering and Collaborative Innovation Center of Suzhou Nano Science and Technology, Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province and Key Lab of Modern Optical Technologies of Education Ministry of China, Soochow University, Suzhou 215006, China.

3. Strait Institute of Flexible Electronics (SIFE, Future Technologies), Fujian Normal University, and Strait Laboratory of Flexible Electronics (SLoFE), Fuzhou 350117, China.

4. College of Materials, Fujian Key Laboratory of Advanced Materials, Xiamen Key Laboratory of Electronic Ceramic Materials and Devices, Xiamen University, Xiamen 361005, China.

5. Laboratory for Thin Films and Photovoltaics, Empa-Swiss Federal Laboratories for Materials Science and Technology, 8600 Duebendorf, Switzerland.

6. Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China.

7. Ningbo New Materials Testing and Evaluation Center Co. Ltd., Ningbo 315201, China.

Abstract

All-perovskite tandem solar cells (TSCs) have exhibited higher efficiencies than single-junction perovskite solar cells (PSCs) but still suffer from the unsatisfactory performance of low-bandgap (LBG) tin-lead (Sn-Pb) subcells. The inherent properties of PEDOT:PSS are crucial to high-performance Sn-Pb perovskite films and devices; however, the underlying mechanism has not been fully explored and revealed. Here, we report a facile oxalic acid treatment of PEDOT:PSS (OA-PEDOT:PSS) to precisely regulate its work function and surface morphology. OA-PEDOT:PSS shows a larger work function and an ordered reorientation and fiber-shaped film morphology with efficient hole transport pathways, leading to the formation of more ideal hole-selective contact with Sn-Pb perovskite for suppressing interfacial nonradiative recombination losses. Moreover, OA-PEDOT:PSS induces (100) preferred orientation growth of perovskite for higher-quality Sn-Pb films. Last, the OA-PEDOT:PSS–tailored LBG PSC yields an impressive efficiency of up to 22.56% (certified 21.88%), enabling 27.81% efficient all-perovskite TSC with enhanced operational stability.

Publisher

American Association for the Advancement of Science (AAAS)

Link

https://www.science.org/doi/pdf/10.1126/sciadv.adl2063

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