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Electrochemical and optical studies of the band gaps of alternating polyfluorene copolymers

✍ Scribed by Shimelis Admassie; Olle Inganäs; Wendimagegn Mammo; Erik Perzon; Mats R. Andersson


Book ID
116898042
Publisher
Elsevier Science
Year
2006
Tongue
English
Weight
895 KB
Volume
156
Category
Article
ISSN
0379-6779

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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