화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2014년 가을 (11/12 ~ 11/14, 엑스코(대구))
권호 18권 2호
발표분야 정보전자소재-포스터
제목 Bis(1-phenyl-1H-benzo[d]imidazole)phenylphosphine oxideinterlayer for effective hole blocking in efficient phosphorescent organic light emitting diodes based on widely used chargetransporting layers
초록 We have developed the efficient phosphorescent organic light emitting diodes based on green-emitting Ir(ppy)3 dopant with widely used charge transport-ing layers. PHOLEDs show the electroluminescence emission from the dopant emitter at 512 nm with CIEcolor coordinates of (0.30, 0.59). We investigated the roll of a 10-nm-thick electron-transporting type BIPO interlayer in the device efficiencies. BIPO with the deep HOMO energy level and higher electron transporting ability effectively blocks the holes from EML to ETL and improves the charge balance in the EML of the device.
저자 박성종, 안은수, 김명종, Kuppusamy Thangaraju, 김윤희
소속 경상대
키워드 phosphorescent; organic light emitting diodes; charge transporting layers
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