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New Deep Blue Light Emitting Copolymer Containing Fluorene, Carbazole, and Dialkoxynaphthalene
- Authors
- Kang, Hyun Hee; Kang, Moon Seong; Oh, Dae Hwan; Lee, Dong Hee; Shin, Dong-Cheol; Kwon, Soon-Ki; Kim, Yun-Hi
- Issue Date
- Jul-2011
- Publisher
- John Wiley & Sons Inc.
- Keywords
- fluorescence; light-emitting diodes; copolymers
- Citation
- Journal of Applied Polymer Science, v.121, no.1, pp 43 - 48
- Pages
- 6
- Indexed
- SCI
SCIE
SCOPUS
- Journal Title
- Journal of Applied Polymer Science
- Volume
- 121
- Number
- 1
- Start Page
- 43
- End Page
- 48
- ISSN
- 0021-8995
1097-4628
- Abstract
- We synthesized the new copolymer, which was composed of dialkoxy naphthalene, N-alkylcarbazole, and fluorine, by Suzuki coupling reaction. The resulting copolymer was soluble in common organic solvents and showed the weight-average molecular weight (MW) of 288,000 with a polydispersity index of 2.56. Cyclic voltammetry and UV-vis study revealed that the HOMO energy level and optical band gap of copolymer was 5.66 and 3.03 eV, respectively. The ITO/PEDOT/polymer/LiF/Al device emits bright deep blue light with a maximum peak around 422 nm. (C) 2011 Wiley Periodicals, Inc. J Appl Polym Sci 121: 43-48, 2011
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