报告题目：Design of Electroactive Polymers with High Mechanical Properties for Intrinsically-Stretchable Polymer Solar Cells

报  告 人：Bumjoon J. Kim教授（Korea Advanced Institute of Science and Technology ）

邀  请 人：黄飞 教授

报告时间：2024年7月8日（周一）下午4:00-5:30

报告地点：北区发光材料与器件国家重点实验室502会议室

报告摘要：

Design of Electroactive Polymers with High Mechanical Properties for Intrinsically-Stretchable Polymer Solar Cells

Bumjoon J. Kim

Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea

E-mail address:bumjoonkim@kaist.ac.kr

Considering the technical standards required for wearable electronics, such as mechanical robustness, the development of intrinsically-stretchable OSCs (IS-OSCs) should be accelerated. Concurrently, IS-OSCs offer an intriguing platform for testing the mechanical and electrical properties of new polymeric materials. This presentation will discuss key studies aimed at making each layer of IS-OSCs both stretchable and efficient, with an emphasis on strategies to simultaneously enhance the photovoltaic and mechanical properties of the active layer. I will outline material design strategies to enhance the mechanical robustness of the PSCs as well as their power conversion efficiencies (PCEs). These strategies include; i) incorporating a high-molecular weight polymer acceptor as a tie molecule into active layers, ii) developing new electroactive polymers consisting of hard and soft segments and iii) developing new materials that improve molecular miscibility in the donor-acceptor blends. With these contributions, the IS-OSCs achieving over 14% PCE and high stretchability have been developed.

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