DataVXACS Applied Energy MaterialsPaper
journal article·2021-11-22

Performance Improvement of Perovskite Solar Cells by Using Ionic Liquid BMIMPF6 as an Interface Modifier

Ming Peng, Weideren Dai, Liangyou Lin, Bichen Xiao, Songyang Guo, Mingqing Fang, Hairen Wang, Yanzhuo Gou, Muhammad Sultan Irshad, Junbo Gong, Jinhua Li

ACS Applied Energy Materials· Volume 4· Issue 11
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Source abstract

Abstract

A pristine electron transport layer (ETL) usually delivers relatively low device performance due to high defect density and/or poor contact. Interface modification has been demonstrated to be one of the most effective strategies to passivate the defects and improve the contact. In this study, we employ ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate (BMIMPF6) as an interface modifier between an ETL and perovskite layer. The modified ETL shows enhanced electron conductivity and a more suitable energy level, which facilitate the electron transport. In addition, the modification reduces the electron trap density, which decreases the hysteresis while simultaneously improving the power conversion efficiency of the device from 18.03 to 19.66%.
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Research context

Electronic materials

OpenAlex topics: Perovskite Materials and Applications · Conducting polymers and applications · Quantum Dots Synthesis And Properties

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

Affiliations

Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, China

School of Physics and Technology, Wuhan University, Wuhan 430072, China

Funding

Ministry of Science and Technology of the People's Republic of China · Department of Science and Technology, Hubei Provincial People's Government · China Postdoctoral Science Foundation · Wuhan Municipal Science and Technology Bureau · Overseas Expertise Introduction Center for Discipline Innovation

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