Blue emitting materials based on diphenylamine-substituted diphenylvinylarenes for OLEDs
- Authors
- Kim, Changmin; Jeong, Sujin; Lee, Ho Won; Kim, Young Kwan; Yoon, Seung Soo
- Issue Date
- 2017
- Publisher
- TAYLOR & FRANCIS LTD
- Keywords
- Blue OLED; diphenylamine; diphenylvinylarene; fluorescence
- Citation
- MOLECULAR CRYSTALS AND LIQUID CRYSTALS, v.651, no.1, pp.9 - 15
- Journal Title
- MOLECULAR CRYSTALS AND LIQUID CRYSTALS
- Volume
- 651
- Number
- 1
- Start Page
- 9
- End Page
- 15
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/6896
- DOI
- 10.1080/15421406.2017.1338486
- ISSN
- 1542-1406
- Abstract
- To develop the efficient blue emitters for Organic light-emitting diodes (OLEDs), this paper reports the synthesis and electroluminescent properties of diphenylvinylarenes end-capped with diphenylamine groups. Two OLEDs were fabricated in the following sequence: indium-tin-oxide (ITO) / N,N-di(1-naphthyl)-N,N-diphenyl-(1,1-biphenyl)-4,4-diam-ine (NPB) (50nm) / Blue emitters (30nm) / bathophenanthroline (Bphen) (30nm) / lithium quinolate (Liq) (2nm) /Al (100nm). Two devices exhi-bited blue electroluminescence. In particular, a device using 9,9-diethyl-N,N-diphenyl-7-(2,2-diphenylvinyl)-9H-fluoren-2-amine exhibited blue emission with a luminance efficiency, a power efficiency, an external quantum efficiency and Commission Internationale d'Enclairage (CIE) coordinates of 5.48 cd/A, 2.45lm/W, 2.85% at 20mA/cm(2) and (x = 0.17, y = 0.25) at 8.0V, respectively.
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Collections - College of Engineering > Department of Science > 1. Journal Articles
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