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  • 09월 06일 15시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제112회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Synthesis and Calculation of Germafluorene Derivatives

등록일
2013년 9월 5일 14시 48분 01초
접수번호
1379
발표코드
INOR.P-236 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 16일 (수요일) 16:00~19:00
발표형식
포스터
발표분야
무기화학
저자 및
공동저자
엄성용, 이성기, 조보민, 김성웅, 손홍래*
조선대학교 화학과, Korea
Various functionalized germaflourene derivatives were used to investigate their optical and electronic properties. The germafluorene compounds were synthesized by a stepwise reactions from 1,2,4,5-tetrabromobenzene to 2,2'-dibromobisfluorene with germanium tetrachloride in THF at row temperature. The germafluorene compounds were characterized by 1H-NMR, UV-Vis absorption, and photoluminescence spectroscopy. The optical absorption spectra showed an absorption edge at 285 nm, while a strong UV-vis photoluminescence at 350 nm is observed. These germafluorene compounds are served as light emissive layers. They possess relatively low LUMO energy levels while maintaining high HOMO-LUMO optical gaps. Differential scanning calorimetry measurements reveal that these germafluorene compounds exhibited very good thermal stability at extremely high temperature ca. above 350 oC. Organic light-emitting diodes have been fabricated by using thermal evaporation technique and shows blue emission with an excellent diode behavior under the forward bias. This research was financially supported by the Ministry of Education (MOE) and National Research Foundation of Korea(NRF) through the Human Resource Training Project for Regional Innovation (No. 2012H1B8A2026282)

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