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Proceedings Paper

Phosphorescent emission from organic electroluminescent device
Author(s): Zhefu Wu; Xianmin Zhang; Run G. Sun; Wenlian Li; Kangsheng Chen
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Paper Abstract

A novel organic electroluminescent device with EuGd complex (Eu0.1Gd0.9)(TTA)3(TPPO)2 as an emitter is presented, and the characteristics of the device are investigated. The phosphorescence emission from the device are observed, which are discussed in terms of yields of phosphorescence from the triplet excited state of the Gd and Eu chelates due to the strong protuberance to the spin-orbit levels of the ligands by the paramagnetic Gd3+ ions. Both the photoluminescent and electroluminescent efficiencies at different temperature between 77 K and 300 K are measured by integrating sphere method. Our results show that the phosphorescent emission from the triplets excited sate might be useful to improve the quantum efficiency of organic electroluminescent devices.

Paper Details

Date Published: 29 November 2000
PDF: 4 pages
Proc. SPIE 4086, Fourth International Conference on Thin Film Physics and Applications, (29 November 2000); doi: 10.1117/12.408374
Show Author Affiliations
Zhefu Wu, Zhejiang Univ. (China)
Xianmin Zhang, Zhejiang Univ. (China)
Run G. Sun, Univ. of Tokyo (United States)
Wenlian Li, Changchun Institute of Physics (China)
Kangsheng Chen, Zhejiang Univ. (China)

Published in SPIE Proceedings Vol. 4086:
Fourth International Conference on Thin Film Physics and Applications
Junhao Chu; Pulin Liu; Yong Chang, Editor(s)

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