DataVXACS Energy LettersPaper
journal article·2024-03-08

Ion-Migration Inhibitor for Spiro-OMeTAD/Perovskite Contact toward Stable Perovskite Solar Cells

Jiazhe Xu, Pengju Shi, Ke Zhao, Libing Yao, Caner Deger, Sisi Wang, Xu Zhang, Shaochen Zhang, Yuan Tian, Xiaonan Wang, Jiahui Shen, Chao Zhang, Ilhan Yavuz, Jingjing Xue, Rui Wang

ACS Energy Letters· Volume 9· Issue 3
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Source abstract

Abstract

Dopants are utilized to enhance the mobility and optimize energy levels of hole-transporting layers in perovskite solar cells (PSCs), which are crucial to achieving high power conversion efficiencies (PCEs) of normal PSCs. However, the traditional method of doping 2,2′,7,7′-tetrakis( N,N -di(4-methoxyphenyl)amino)-9,9-spirobifluorene (Spiro-OMeTAD) with lithium bis(trifluoromethylsulfonyl)imide (Li-TFSI) can cause inward migration of Li-ions to perovskite, which is one of the main factors affecting the long-term stability of PSCs. In this study, we utilized a multifunctional ion-migration inhibitor at the Spiro-OMeTAD/perovskite interface to control ion migration. As a result, both Spiro-OMeTAD and perovskite were safeguarded and the device’s operational stability was enhanced. The optimized devices with 4-methanesulfonyl-benzamidine hydrochloride exhibited an improved PCE of up to 25.3%. Meanwhile, we documented 520-h T 90 under continuous 1-sun illumination, 740-h T 80 heating at 60 ± 5 °C, and 1000-h T 92 at maximum power point tracking at 50 ± 5 °C under continuous 1-sun illumination.
Source: openalex_inverted_index · Quality: baseline

Research context

Electronic materials

OpenAlex topics: Perovskite Materials and Applications · Conducting polymers and applications · Organic Light-Emitting Diodes Research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Engineering, Westlake University and Institute of Advanced Technology, Westlake Institute for Advanced Study, Hangzhou 310024, China

State Key Laboratory of Silicon and Advanced Semiconductor Materials and School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China

Department of Physics, Marmara University, 34722 Ziverbey, Istanbul, Turkey

School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China

Instrumentation and Service Centre for Physical Sciences, Westlake University, Hangzhou 310024, China

Shangyu Institute of Semiconductor Materials, Shaoxing 312300, China

Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Zhejiang University, Hangzhou 310027, China

Funding

Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering · Zhejiang University · Westlake University · National Natural Science Foundation of China · Natural Science Foundation of Zhejiang Province

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