Bright blue electroluminescence from hole transporting polycarbonate

Bright blue electroluminescence (EL) was observed for the EL cell with a nonconjugated polymer as an emitting layer. The emitting layer was composed of a hole transporting polycarbonate containing styrylamine as a functional repeating unit (SA-PC). SA-PC was soluble in many solvents. It was very eas...

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Bibliographic Details
Published in:Applied physics letters 1992-11, Vol.61 (21), p.2503-2505
Main Authors: HOSOKAWA, C, KAWASAKI, N, SAKAMOTO, S, KUSUMOTO, T
Format: Article
Language:English
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Application fields
Applied sciences
Exact sciences and technology
Polymer industry, paints, wood
Technology of polymers
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Summary:Bright blue electroluminescence (EL) was observed for the EL cell with a nonconjugated polymer as an emitting layer. The emitting layer was composed of a hole transporting polycarbonate containing styrylamine as a functional repeating unit (SA-PC). SA-PC was soluble in many solvents. It was very easy to form a smooth and dense thin film at a thickness less than 100 nm without any recrystallization. For the EL cell with ITO/SA-PC/an oxadiazole derivative/Mg:Ag structure, we achieved bright luminance of 130 cd/m2 at a current of 80 mA/cm2 with an applied voltage of 11 V.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.108162