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Hybrid organic-inorganic diode devices

등록일
2009년 8월 23일 14시 57분 36초
접수번호
1570
발표코드
금25I2구 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
금 09시 : 30분
발표형식
구두발표
발표분야
고분자화학 - General Topics on Polymer Science II (일반 회원 발표)
저자 및
공동저자
송명훈
울산과학기술대학교 기계신소재공학부, Korea
We present an investigation of high brightness, efficient, and encapsulation-free, high brightness encapsulation-free composite metal-oxide-polymer light emitting diodes (LEDs). In these diodes, mesoporous and/or compact form of metal-oxide layers have been used for electron injection and a MoO3 layer for hole injection. We demonstrate that compact ZnO operates phenomenally well and significantly better than compact or mesoporous TiO2. We make also use of the high refractive index of ZnO to confine these modes away from the absorbing electrodes, and include a nano-imprinted grating in the polymer layer to introduce distributed feedback and enhance optical out-coupling. Further to improved LED operation, we demonstrate optically-pumped lasing in devices that also function as LEDs. This demonstrates the scope to use such architectures to improve the external efficiency of organic semiconductor LEDs, and opens new possibilities for the realisation of polymer injection lasers.

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