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Proceedings Paper

Highly efficient and bright organic light-emitting devices using a Sn/Al cathode
Author(s): Feng Li; Gang Cheng; Jing Feng; Shiyong Liu
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Paper Abstract

A bilayer is used as an electrode for organic light-emitting devices. The bilayer consists of a Sn layer adjacent to Alq layer and an Al outerlayer. The effects of a controlled Sn buffer layer on the behavior of ITO/CuPc/NPB/Alq/Sn/Al light-emitting devices are described. It is found that both electron injection efficiency and electroluminescence are significantly enhanced when the thickness of Sn layer is suitable. The enhancement is believed to be due to increased electron density of Sn layer near the Sn/Al interface .

Paper Details

Date Published: 29 October 2001
PDF: 5 pages
Proc. SPIE 4594, Design, Fabrication, and Characterization of Photonic Devices II, (29 October 2001); doi: 10.1117/12.446567
Show Author Affiliations
Feng Li, Jilin Univ. (China)
Gang Cheng, Jilin Univ. (China)
Jing Feng, Jilin Univ. (China)
Shiyong Liu, Jilin Univ. (China)

Published in SPIE Proceedings Vol. 4594:
Design, Fabrication, and Characterization of Photonic Devices II
Marek Osinski; Soo-Jin Chua; Akira Ishibashi, Editor(s)

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