Spectral broadening in electroluminescence of white organic light-emitting diodes based on complementary colors

Young Min Kim; Young Wook Park; Jin Hwan Choi; Byeong Kwon Ju; Jae Hoon Jung; Jai Kyeong Kim

doi:10.1063/1.2431773

Spectral broadening in electroluminescence of white organic light-emitting diodes based on complementary colors

Young Min Kim, Young Wook Park, Jin Hwan Choi, Byeong Kwon Ju, Jae Hoon Jung, Jai Kyeong Kim

School of Electrical Engineering

Research output: Contribution to journal › Article

39 Citations (Scopus)

Abstract

The authors report the optical and electroluminescent (EL) properties of white organic light-emitting diodes (OLEDs) which have two emitters with similar structures: 1, 1, 4, 4-tetraphenyl-1, 3-butadiene and 2,9-dimethyl-4,7- diphenyl-1,10-phenanthroline have an emission peak of 400 nm around the near ultraviolet, and tris-(8-hydroxyquinoline) aluminum doped with 4-(dicyanomethylene)-2-methyl-6-(p-dimethylaminostyryl)-4H-pyran has an emission peak of 580 nm producing a yellow color. The EL spectra of the white OLED have shown a broadening through visual range from 400 to 780 nm. This spectral broadening is related to an exciplex emission at the organic solid interface.

Original language	English
Article number	033506
Journal	Applied Physics Letters
Volume	90
Issue number	3
DOIs	https://doi.org/10.1063/1.2431773
Publication status	Published - 2007 Jan 29

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ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

Cite this

Kim, Y. M., Park, Y. W., Choi, J. H., Ju, B. K., Jung, J. H., & Kim, J. K. (2007). Spectral broadening in electroluminescence of white organic light-emitting diodes based on complementary colors. Applied Physics Letters, 90(3), [033506]. https://doi.org/10.1063/1.2431773

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abstract = "The authors report the optical and electroluminescent (EL) properties of white organic light-emitting diodes (OLEDs) which have two emitters with similar structures: 1, 1, 4, 4-tetraphenyl-1, 3-butadiene and 2,9-dimethyl-4,7- diphenyl-1,10-phenanthroline have an emission peak of 400 nm around the near ultraviolet, and tris-(8-hydroxyquinoline) aluminum doped with 4-(dicyanomethylene)-2-methyl-6-(p-dimethylaminostyryl)-4H-pyran has an emission peak of 580 nm producing a yellow color. The EL spectra of the white OLED have shown a broadening through visual range from 400 to 780 nm. This spectral broadening is related to an exciplex emission at the organic solid interface.",

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10.1063/1.2431773