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Three-layered multicolor organic electroluminescent device
Author(s) -
Masayoshi Yoshida,
Akihiko Fujii,
Yutaka Ohmori,
Katsumi Yoshino
Publication year - 1996
Publication title -
applied physics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 442
eISSN - 1077-3118
pISSN - 0003-6951
DOI - 10.1063/1.117874
Subject(s) - electroluminescence , perylene , optoelectronics , materials science , polarity (international relations) , electric field , emission intensity , layer (electronics) , field electron emission , electron , fluorescence , optics , luminescence , nanotechnology , chemistry , physics , biochemistry , quantum mechanics , cell
We have realized a three‐layered multicolor organic electroluminescent device utilizing poly (9,9‐dihexylfluorene) and perylene derivatives as emission layers, with diamine derivatives as an electron blocking layer. Emission colors could be selected either blue or red by changing the polarity of the applied voltage. By driving with an ac biased electric field, both emission colors were observed and the intensity ratio of each emission color was modulated by the frequency of the applied ac field.

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