Volume 6, Issue 7 2200070
Research Article

High-Performance Ternary Semitransparent Polymer Solar Cells with Different Bandgap Third Component as Non-Fullerene Guest Acceptor

Xiangkun Wang

Xiangkun Wang

School of Materials Science and Engineering, Ocean University of China, Qingdao, 266100 China

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Xiaohua Zhai

Xiaohua Zhai

School of Materials Science and Engineering, Ocean University of China, Qingdao, 266100 China

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Xiao Kang

Xiao Kang

School of Materials Science and Engineering, Ocean University of China, Qingdao, 266100 China

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Xiqiang Ding

Xiqiang Ding

School of Materials Science and Engineering, Ocean University of China, Qingdao, 266100 China

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Caiyun Gao

Caiyun Gao

School of Materials Science and Engineering, Ocean University of China, Qingdao, 266100 China

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Xin Jing

Xin Jing

School of Materials Science and Engineering, Ocean University of China, Qingdao, 266100 China

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Liangmin Yu

Liangmin Yu

Open Studio for Marine Corrosion and Protection, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, 266100 China

Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, 266100 China

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Mingliang Sun

Corresponding Author

Mingliang Sun

School of Materials Science and Engineering, Ocean University of China, Qingdao, 266100 China

Open Studio for Marine Corrosion and Protection, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, 266100 China

Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640 China

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First published: 15 March 2022
Citations: 3

Abstract

Ternary semitransparent polymer solar cells (ST-PSCs) have great potential to simultaneously improve the power conversion efficiency (PCE) and average visible transmittance (AVT). Non-fullerene acceptor IHIC was synthesized by a simple one-step process under low cost and had an A-D-A structure similar to ITIC and IT-4F. Ternary device based on PM6:Y6:IHIC (20%) demonstrated higher hole and electron mobility (2.78, 3.12 × 10−4 cm2 V−1 S−1) and more balanced charge transport properties (μe/μh = 1.12) than the host binary device, and the ternary ST-PSC demonstrated a PCE of 12.18% and AVT of 27.07%. Ternary PSCs with 20% ITIC or IT-4F also exhibited more balanced μe/μh ratios (1.31 and 0.85), but with slightly enhanced short-current circuit density (JSC) and reduced AVT (23–24%), mainly owing to unavoidable absorption of third component in the visible region. Our conclusion in this work was that the little A-D-A non-fullerene acceptor could improve ternary blend film morphology and charge transport channels and enhanced JSC and PCE, and PM6:Y6:IHIC (20%) with high AVT over 27% and PCE over 12% was more suitable in ST-PSCs than PM6:Y6:ITIC/IT-4F (20%).

Conflict of Interest

The authors declare no conflict of interest.

Data Availability Statement

Research data are not shared.

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