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Theoretical studies of the effect of electron-withdrawing dicyanovinyl group on the electronic and charge-transport properties of fluorene-thiophene oligomers

✍ Scribed by Qing-Xiu Wu; Yun Geng; Yi Liao; Xiao-Dan Tang; Guo-Chun Yang; Zhong-Min Su


Book ID
113021711
Publisher
Springer
Year
2012
Tongue
English
Weight
642 KB
Volume
131
Category
Article
ISSN
1432-2234

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## Abstract Poly(fluorene)‐type materials are widely used in polymer‐based emitting devices. During operation there appears, however, an additional emission peak at around 2.3 eV, leading to both a color instability and reduced efficiency. The incorporation of the carbazole units has been proven to