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  • 02월 26일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제115회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Synthesis and characterization of fluorinated benzothiadiazole-based small molecules for solution-processable organic photovoltaic cells

등록일
2015년 2월 25일 19시 09분 13초
접수번호
1349
발표코드
POLY.P-60 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
4월 15일 (수요일) 16:00~19:00
발표형식
포스터
발표분야
고분자화학
저자 및
공동저자
황수진, 박상혁*
공주대학교 화학과, Korea
Because of the unique properties of fluorine atom, fluorinated organic molecules exhibit a lot of distinctive feature such as high thermal and oxidative stability, elevated resistance to degradation, enhanced hydrophobicity. Thererfore, for the development of stable and rugged solar cell devices, fluorinated materials are considered to be one of the promising candidates for the organic photovoltaics (OPVs). Furthermore, obtaining low bandgap materials are important for effective absorption of photons from the sun. It is well-known that the fluorine atom is a strong electron-withdrawing substituent, the introduction of F into the conjugated backbone would lower both the lowest unoccupied molecular orbital (LUMO) and highest occupied molecular orbital (HOMO) energy levels of the conjugated organic molecules. In this work, we have designed and synthesized fluorinated benzothiadiazole- and carbazole dimer-based organic small molecules. Because of the substituted two fluorine (F) groups to the benzothiadiazole unit, a larger open cirquit voltage (Voc) was observed by the decreased LUMO and HOMO energy levels.

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