Efficiency Variations in Organic Light-Emitting Devices Utilizing the 4,4 ',4 ''-tris(N-(2-naphthyl)-Nphenylamino) triphenylamine Hole Transport Layer Doped with 2,3,5,6-tetrafluoro-7,7,8,8-tetracyano-quinodimethane
- Authors
- Choo, Dong Chul; Lee, Kwang Seop; Kim, Tae Whan; Park, Jung Hyun; Seo, Ji Hyun; Kim, Young Kwan
- Issue Date
- 2009
- Publisher
- TAYLOR & FRANCIS LTD
- Keywords
- doped hole transport layer; doping concentration; efficiency; electrical properties; optical properties; organic light-emitting device
- Citation
- MOLECULAR CRYSTALS AND LIQUID CRYSTALS, v.514, pp.394 - 401
- Journal Title
- MOLECULAR CRYSTALS AND LIQUID CRYSTALS
- Volume
- 514
- Start Page
- 394
- End Page
- 401
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/22608
- DOI
- 10.1080/15421400903228212
- ISSN
- 1542-1406
- Abstract
- The electrical and the optical properties of organic light emitting devices (OLEDs) with a 2,3,5,6-tetrafluoro-7,7,8,8-tetracyano-quinodimethane (F-4-TCNQ) doped 4,4',4 ''-tris(N-(2-naphthyl)-Nphenylamino)triphenylamine (2-TNATA) hole transport layer (HTL) were investigated. In comparison with that of the OLEDs containing an undoped 2-TNATA layer, the hole transport efficiency of OLEDs with a F-4-TCNQ doped 2-TNATA HTL was significantly enhanced due to an increase in the doping concentration and resulted in enhancement of the luminance. The electroluminescence spectra for the OLEDs with a doped HTL showed a dominant emission peak corresponding to the Alq(3) layer. This peak was not affected by the existence of the F-4-TCNQ doped HTL.
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