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New deep blue light emitting copolymer containing fluorene, carbazole, and dialkoxynaphthalene
Author(s) -
Kang Hyun Hee,
Kang Moon Seong,
Oh Dae Hwan,
Lee Dong Hee,
Shin DongCheol,
Kwon SoonKi,
Kim YunHi
Publication year - 2011
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.33599
Subject(s) - copolymer , materials science , dispersity , carbazole , suzuki reaction , fluorene , pedot:pss , polymer chemistry , cyclic voltammetry , band gap , polymer , photochemistry , chemical engineering , chemistry , organic chemistry , optoelectronics , electrochemistry , catalysis , composite material , palladium , electrode , engineering
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 ( M W ) 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. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011