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Proceedings Paper

Concentration effect of dye dopant in organic light emitting diodes
Author(s): Lu Li; Junsheng Yu; Shuangling Lou; Yadong Jiang
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Paper Abstract

The influence of concentration effect of fluorescent dye dopant 5,6,11,12-tetraphenylnaphthacene (Rubrene) molecules on the performance of small organic light-emitting diodes (OLEDs) has been investigated. An ultrathin dye layer is deposited at the interface of host material via thermal vacuum deposition, dopant concentration is enhanced and the effect of concentration quenching is more obvious. Also, the photoluminescence (PL) spectra of Rubrene solution are provided to focus on concentration quenching. The devices have doping layer and ultrathin layer are compared via their optoelectronic performance. It has been found from the electroluminescence (EL) spectra of the devices that the concentration quenching effect of the doping dyes could be modulated through varying the thickness of ultrathin dye layer.

Paper Details

Date Published: 22 May 2009
PDF: 5 pages
Proc. SPIE 7282, 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 728236 (22 May 2009); doi: 10.1117/12.831019
Show Author Affiliations
Lu Li, Univ. of Electronic Science and Technology of China (China)
Junsheng Yu, Univ. of Electronic Science and Technology of China (China)
Shuangling Lou, Univ. of Electronic Science and Technology of China (China)
Yadong Jiang, Univ. of Electronic Science and Technology of China (China)


Published in SPIE Proceedings Vol. 7282:
4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies
Li Yang; John M. Schoen; Yoshiharu Namba; Shengyi Li, Editor(s)

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