화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2014년 봄 (04/30 ~ 05/02, 제주국제컨벤션센터)
권호 18권 1호
발표분야 포스터-정보.전자소재
제목 Highly Efficient Deep-Blue Phosphorescent Organic Light-Emitting Diodes (OLEDs)
초록 We have developed a series of deep-blue phosphorescent Ir(III) complexes. These molecules have the general formula of Ir(C^N)2(L^X) where C^N = 2',6'-difluoro-2,3'-bipyridine (dfpypy), and L^X = ancillary ligand such as acetylacetonate, acac (2) or dipivaloylmethanoate, dpm (3). a optimized condition using mCP or mCPPO1 as host and TSPO1 as a hole blocking and electron transporting material was developed for efficient blue PhOLEDs of the following structure: ITO/PEDOT:PSS/TAPC/mCP/ mCP:x%-2 and 3/TSPO1/LiF/ Al. The device of compound 2 doped into mCP host at the doping level of 3 wt% has the best performance with EQE of 20% at the brightness of 100 cd/m2 and the maximum current efficiency of 25.3 cd/A(CIE, x=0.14, y=0.18).
저자 이지은, 강영진, 류연진, 이종원, 김진호, 오한국, 오시현
소속 강원대
키워드 OLEDs; Blue phosphorescence; Iridium
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