DataVXAdvanced Functional MaterialsPaper
journal article·2019-08

Ternary Polymer Solar Cells with High Efficiency of 14.24% by Integrating Two Well‐Complementary Nonfullerene Acceptors

Huanxiang Jiang, Xiaoming Li, Jianing Wang, Shanlin Qiao, Yong Zhang, Nan Zheng, Weichao Chen, Yonghai Li, Renqiang Yang

Advanced Functional Materials· Volume 29· Issue 34
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Source abstract

Abstract

Abstract Ternary polymer solar cells (PSCs) are one of the most promising device architectures that maintains the simplicity of single‐junction devices and provides an important platform to better tailor the multiple performance parameters of PSCs. Herein, a ternary PSC system is reported employing a wide bandgap polymeric donor (PBTA‐PS) and two small molecular nonfullerene acceptors (labeled as LA1 and 6TIC). LA1 and 6TIC keep not only well‐matched absorption profiles but also the rational crystallization properties. As a result, the optimal ternary PSC delivers a state of the art power conversion efficiency (PCE) of 14.24%, over 40% higher than the two binary devices, resulting from the prominently increased short‐circuit current density (Jsc) of 22.33 mA cm−2, moderate open‐circuit voltage (Voc) of 0.84 V, and a superior fill factor approaching 76%. Notably, the outstanding PCE of the ternary PSC ranks one of the best among the reported ternary solar cells. The greatly improved performance of ternary PSCs mainly derives from combining the complementary properties such as absorption and crystallinity. This work highlights the great importance of the rational design of matched acceptors toward highly efficient ternary PSCs.
Source: crossref · Quality: baseline

Research context

Polymers

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

CAS Key Laboratory of Bio‐based Materials Qingdao Institute of Bioenergy and Bioprocess Technology Chinese Academy of Sciences Qingdao 266101 China

Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing 100049 China

College of Chemistry and Pharmaceutical Engineering Hebei University of Science and Technology Shijiazhuang 050018 China

Institute of Optoelectronic Materials and Technology South China Normal University Guangzhou 510631 China

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

College of Textiles & Clothing State Key Laboratory of Bio‐fibers and Eco‐textiles Collaborative Innovation Center for Eco‐Textiles of Shandong Province Qingdao University Qingdao 266071 China

Funding

National Natural Science Foundation of China · Natural Science Foundation of Shandong Province · Dalian Institute of Chemical Physics

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