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제113회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Novel blue organic-light emitting materials based on 9-(9,9-dimethyl-9H-fluoren-2-yl)-anthracene with triphenylsilane unit

등록일
2014년 2월 10일 15시 07분 23초
접수번호
0189
발표코드
ORGN.P-606 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
4월 16일 (수요일) 16:00~19:00
발표형식
포스터
발표분야
유기화학
저자 및
공동저자
송지영, 박수나, 이슬비, 김찬우, 윤승수*
성균관대학교 화학과, Korea
Four deep-blue-emitting materials based on anthracene and fluorene hybrids with triphenylsilane unit was synthesized and characterized to serve as blue emitting materials via Suzuki-coupling reaction for organic light-emitting diodes (OLEDs) application. Triphenylsilane unit could interrupt intermolecular interaction and reduce self-aggregation through steric hindrance of the non-planar structure. Also, we investigated conjugation-length effect through various connection form of anthracene and fluorene hybrids. To explore their electroluminescent properties, devices with the structure of ITO(180nm)/ NPB(50nm)/ blue materials (30nm)/ Bphen (30nm)/ Liq(2nm)/ Al (100nm) were fabricated. All devices showed deep-blue emission which suggested that triphenylsilane moiety effectively prevented intermolecular interaction and thus reduced concentration quenching in emitting layer. In particular, the device using S-3 exhibited high efficiencies (2.53 cd/A, 1.94 lm/W, 1.72% at 20mA/cm2). These results demonstrated that triphenylsilane-substituted anthracene and fluorene hybrids might become candidates as emitting materials applied as OLED application.

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