DataVXACS Applied Energy MaterialsPaper
journal article·2021-04-26

Simultaneously Enhancing the Jsc and Voc of Ternary Organic Solar Cells by Incorporating a Medium-Band-Gap Acceptor

Min Zhang, Min Zeng, Xiong Deng, Zhijie Zhou, Xiaoxiao Tan, Songting Tan, Bin Zhao, Jianqi Zhang, Yingping Zou

ACS Applied Energy Materials· Volume 4· Issue 4
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Source abstract

Abstract

Ternary organic solar cells (OSCs) are fabricated with a PM6:Y6 blend film as the host system and a medium-band-gap (MBG) acceptor (BTIC-Cl) with a high-lying lowest unoccupied molecular orbital (LUMO) energy level as the third component. The ternary blend film PM6:Y6:BTIC-Cl (1:1.2:0.2, wt/wt) possesses a more favorable morphology, better ordered face-on π–π stacking, higher charge mobilities, and more balanced charge transfer than the binary blend films and other ternary blend films. As a result, the ternary OSC with the ratio of 1:1.2:0.2 shows an impressive power conversion efficiency of 16.60% with synchronously enhanced Jsc of 27.25 mA cm–2 and Voc of 0.86 V, which are distinctly superior to those of the binary OSCs based on PM6:Y6 (15.50%) and PM6:BTIC-Cl (12.66%). These results provide an insight into the role of an MBG small-molecule acceptor with a high-lying LUMO energy level in ternary OSCs.
Source: openalex_inverted_index · Quality: baseline

Research context

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

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

Affiliations

College of Chemistry, Xiangtan University, Xiangtan 411105, China

College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China

Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China

National Center for Nanoscience and Technology, Beijing 100190, China

Funding

Ministry of Education of the People's Republic of China · National Natural Science Foundation of China · Hunan 2011 Collaborative Innovation Center of Chemical Engineering & Technology with Environmental Benignity and Effective Resource Utilization

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