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A New Orange-Light-Emitting Materials Based on (N-naphthyl)-1,8-naphthalimide for OLED Applications
- Authors
- Jung, Sung Ouk; Yuan, Wei; Ju, Jin Uk; Zhang, Shuang; Kim, Yun Hi; Je, Jong Tae; Kwon, Soon Ki
- Issue Date
- Dec-2009
- Publisher
- Taylor & Francis
- Keywords
- amorphous; donor-acceptor structure; non-planar conformation; OLED; orange-emitter
- Citation
- Molecular Crystals and Liquid Crystals, v.514, pp 375 - 384
- Pages
- 10
- Indexed
- SCIE
SCOPUS
- Journal Title
- Molecular Crystals and Liquid Crystals
- Volume
- 514
- Start Page
- 375
- End Page
- 384
- ISSN
- 1542-1406
1543-5318
- Abstract
- A new orange emitters consisting of 2-naphthalene-1-yl-benzo[de]isoquinoline-1, 3-dione (NBID) as core, and bulky diphenylamine or naphthylphenylamine substituted as a side units were synthesized and characterized. These compounds have a non-planar molecule conformation, donor-acceptor structure, and high thermal stability. Using these materials as dopant, we fabricated electroluminescence device with a structure of ITO/DNTPD/NPD/NBID-1, 2 (3 wt% in Alq(3))/Alq(3)/LiF/Al. The luminance-efficiency of NBID derivatives (1 and 2) were showed 6.6 cd/A and 5.9 cd/A, respectively. The orange emissions were observed with Commission International de I'Eclairage (CIE) coordinates of (0.46, 0.52) for NBID-1 and (0.48, 0.52) for NBID-2, respectively.
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