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Small Molecular Reddish-White Light Emitting Electrophosphorescent Devices with Solution Processed Emission Layer
- Authors
- Seo, Ji Hyun; Jin, You Young; Choi, Eun Young; Kim, Hoe Min; Kim, Jun Ho; Je, Jong-Tae; Kang, Hyun Ju; Lee, Kum Hee; Yoon, Seung Soo; Kim, Young Kwan
- Issue Date
- 2010
- Publisher
- TAYLOR & FRANCIS LTD
- Keywords
- Host; organic light-emitting diode; polymer; small molecule
- Citation
- MOLECULAR CRYSTALS AND LIQUID CRYSTALS, v.531, pp.27 - 32
- Journal Title
- MOLECULAR CRYSTALS AND LIQUID CRYSTALS
- Volume
- 531
- Start Page
- 27
- End Page
- 32
- ISSN
- 1542-1406
- Abstract
- We compared the electrical characteristics of polymer, poly(N-vinylcarbazole) (PVK) and small molecule, 4,4'-N,N'-dicarbazole-biphenyl (CBP), N,N'-dicarbazolyl-3,5-benzene (mCP), as host material in white organic light-emitting diodes (OLEDs) fabricated by solution process. In order to obtain the white emission, iridium(III) bis(4,6-difluorophenylpyridinato)-picolinate) (Firpic) and iridium(III) bis(2-phenylquinoline)(acetylaceton) [Ir(pq)(2)acac] were used as blue and red emitting dopant, respectively. As a result, devices with PVK, CBP, and mCP have the max. luminous efficiencies of 10.5 cd/A, 9.8 cd/A, and 4.2 cd/A, respectively.
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Related Researcher
- Kim, Young Kwan
- Engineering (Applied Science)