journal article·2021-06

Non‐Halogenated‐Solvent Processed and Additive‐Free Tandem Organic Solar Cell with Efficiency Reaching 16.67%

Shucheng Qin, Zhenrong Jia, Lei Meng, Can Zhu, Wenbin Lai, Jinyuan Zhang, Wenchao Huang, Chenkai Sun, Beibei Qiu, Yongfang Li

Advanced Functional Materials· Volume 31· Issue 25
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Abstract

Abstract Organic solar cells (OSCs) have recently reached a remarkably high efficiency and become a promising technology for commercial application. However, OSCs with top efficiency are mostly processed by halogenated solvents and with additives that are not environmentally friendly, which hinders large‐scale manufacture. In this study, high‐performance tandem OSCs, based on polymer donors and two small‐molecule acceptors with different bandgaps, are fabricated by solution processing with non‐halogenated solvents without additive. Importantly, the two active layers developed from non‐halogenated solvents show better phase segregation and charge transport properties, leading to superior performance than halogenated ones. As a result, a tandem OSC with high efficiency of up to 16.67% is obtained, showing unique advantages in future massive production.
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Research context

OpenAlex topics: Organic Electronics and Photovoltaics · Conducting polymers and applications · Perovskite Materials and Applications

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

Affiliations

Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China

School of Chemical Science University of Chinese Academy of Sciences Beijing 100049 China

Department of Materials Science and Engineering Monash University Clayton Victoria 3168 Australia

State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 China

Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory Xianhu Hydrogen Valley Foshan 528216 China

College of Chemistry, and Green Catalysis Center Zhengzhou University Zhengzhou 450001 China

Key Laboratory of Solid State Optoelectronic Devices of Zhejiang Province College of Physics and Electronic Information Engineering Zhejiang Normal University Jinhua Zhejiang 321004 China

Laboratory of Advanced Optoelectronic Materials College of Chemistry Chemical Engineering and Materials Science Soochow University Suzhou Jiangsu 215123 China

Funding

National Key Research and Development Program of China · National Natural Science Foundation of China · Australian Renewable Energy Agency

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