화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2019년 봄 (04/10 ~ 04/12, 부산컨벤션센터(BEXCO))
권호 44권 1호
발표분야 분자전자 부문위원회 I
제목 Imidazole-based simple hole-transporting materials for efficient perovskite solar cells
초록 In this work, we prove that designing organic hole-transporting materials (HTMs) to have the enhanced property at their photo-excited states could be a new methodology to improve their performances for the high efficiency p-i-n perovskite solar cells (PSCs). Especially, we focus on their transition dipole moment variation at the photoexcitation, which can intensify this feature by the excited-state intramolecular proton transfer process, for the high performance PSCs. Following the design rules, organic HTMs can be designed to have high dipole moment at the excited states, and this property can be preserved during the solar cell operation due to their extended lifetime by the proton transfer process, consequently improving the charge recombination and extraction property of PSC devices. Moreover, their UV-filtering ability is beneficial to enhance the photostability of PSCs. We believe that our suggestion could be a new strategy to design efficient HTMs for high performance PSCs.
저자 박상혁
소속 공주대
키워드 Imidazole; hole transport materials; perovskite solar cells
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