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Proceedings Paper

Investigation of the properties and stability of microcavity devices based on LPPP heterojunction structure
Author(s): Kejun Liao; Wanlu Wang; Chunyang Kong
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Paper Abstract

The microcavity light emitting devices were fabricated based on ladder-type poly (p-phenyline) (LPPP) and doped tris (8- hydroxyquinoline aluminum Alq3) heterojunction structure. The light emitting layers we LPPP with hole transportation and Alq3 as electron transporter. ITO and AL were the hole and electron injecting. Experimental results showed that the microcavity effect has been achieved simply by adjusting thickness of the organic light emitting layers between the ITO and AL electrodes. The stability of the microcavity devices with the heterojunction structure based on LPPP and doped- Alq3 was greatly improved. This can be ascribed to that the ladder-type structure of LPPP exhibited a higher thermal and chemical stability, and the intermolecular hydrogen bonding between the depant molecules was eliminated, led to decreasing nonvadiative centers.

Paper Details

Date Published: 16 October 2001
PDF: 7 pages
Proc. SPIE 4602, Semiconductor Optoelectronic Device Manufacturing and Applications, (16 October 2001); doi: 10.1117/12.445702
Show Author Affiliations
Kejun Liao, Chongqing Univ. (China)
Wanlu Wang, Chongqing Univ. (China)
Chunyang Kong, Chongqing Univ. (China)

Published in SPIE Proceedings Vol. 4602:
Semiconductor Optoelectronic Device Manufacturing and Applications
David Chen; David Chen; Guo-Yu Wang; Ray T. Chen; Guo-Yu Wang; Chang-Chang Zhu, Editor(s)

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