Enhancement Mechanisms of the Color Purity in Blue Organic Light-Emitting Devices Fabricated Utilizing an Emitting Layer Containing Mixed Fluorescence and Phosphorescence Host Materials

  • Bang, Hyun Sung
  • Choo, Dong Chul
  • Kim, Tae-Won
  • Lee, Suk Jae
  • Seo, Jeong Hyub
  • 외 1명
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초록

The electrical and optical properties of blue organic light-emitting devices (OLEDs) containing a mixed host emitting layer (EML) consisting of a 1,3-bis(carbazole-9-yl) benzene (mCP) layer and a 3-tert-butyl-9,10-di(naphtha-2-yl) anthracene (TBADN) layer were investigated. The driving voltage of the OLEDs with a mixed host EML was smaller than that of the OLEDs with a single EML. The electroluminescence spectra for OLEDs containing a mixed host EML showed a dominant peak related to the mCP or the TBADN layer. The color coordinates of the OLEDs containing a 5% TBADN-doped mCP EML were (0.146, 0.091), indicative of the deep blue color coordinates.

키워드

Blue organic light-emitting devicescolor puritymixed host emitting layerdriving voltageelectroluminescencecolor coordinatesCOMBINATORIAL FABRICATIONELECTROLUMINESCENT DEVICEDIODESEFFICIENCYEMISSION
제목
Enhancement Mechanisms of the Color Purity in Blue Organic Light-Emitting Devices Fabricated Utilizing an Emitting Layer Containing Mixed Fluorescence and Phosphorescence Host Materials
저자
Bang, Hyun SungChoo, Dong ChulKim, Tae-WonLee, Suk JaeSeo, Jeong HyubKim, Young Kwan
DOI
10.1080/15421406.2011.600127
발행일
2011-10
유형
Article; Proceedings Paper
저널명
Molecular Crystals and Liquid Crystals
551
페이지
33 ~ 39