2024학년도 2학기 물리학과 세미나를 안내해 드립니다.
•연사: 서정화 교수(서울시립대학교 물리학과)
•제목: Interface physics on organic and perovskite optoelectronic devices
•초록: Organic and perovskite solar cells are an exciting new type of renewable energy source that has made remarkable progress in the past several years. The rapid increase in power conversion efficiencies for this class of device can be attributed to the development of high performance materials as both active layers and transport materials, as well as continual grown in the understanding of device physics. Despite remarkable progress, the ability to control doping and create p-type or n-type homo-junctions remains a challenge. Although a few examples of controlled p-type and n-type doping can be found in the literature, a systematic understanding of how ions affect the electronic band structure and can be used to create or control this type of junction is lacking. In this contribution we explore the role of ions in controlling the energy band structure of solar cells, focusing on recent results with relatively new class of hole transport materials consisting of anionic polyelectrolytes based on polystyrene sulfonate with different metal cations.
•일시: 10월 17일 목요일 오후 4시 30분
•장소: 베어드홀 103호
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