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Organic Light-Emitting Diodes with Fluorescent Multi-Emissive Layer Using P- and N- Type Emissive Host Materials 원문보기

  • 저자

    윤주안

  • 학위수여기관

    호서대학교 일반대학원

  • 학위구분

    국내석사

  • 학과

    디지털디스플레이공학과

  • 지도교수

    김우영

  • 발행년도

    2014

  • 총페이지

    xiv, 122 p.

  • 키워드

    OLED;

  • 언어

    eng

  • 원문 URL

    http://www.riss.kr/link?id=T13540985&outLink=K  

  • 초록

    ABSTRACT Organic Light-emitting Diodes with Fluorescent Multi-emissive Layer Using P- and N- Type Emissive Host Materials Ju An Yoon Department of Display Engineering, The Graduate School of Hoseo University Asan, Korea (Supervised by Professor Woo Young Kim) Since the report by Tang & VanSlyke on organic light-emitting diodes (OLEDs), OLEDs have attracted worldwide interest due to their attractive advantages for displays such as reduced power consumption, compatibility with flexible substrates, high color rendering index, high contrast and wide viewing angle. OLEDs have emerged as a strong candidate for next generation flat panel displays and solid-state lighting. Much progress has been made in the development of high performance OLEDs through materials innovation and device optimization. Although many studies have been focused on improving overall efficiency of OLEDs, the development of efficient OLEDs still remains as one of the main challenges. In this study, Among various method for enhanced efficiency, the multi emissive layer has proved to be an effective approach for high device performance, by confining charge carriers and exciton within the multi emissive layer. Thus the charge carrier recombination efficiency and exciton formation probability can be beneficially enhanced. The organic molecules were insufficiently restricted by Van der Waals force among molecules in the organic multi emissive layers. Luminous efficiency and current -voltage-luminance (I-V-L) characteristics and spectroscopic analysis using multi-peak fits with a Gaussian function of the emission spectra were observed considering the effects of multi emissive layers.


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