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Proceedings Paper

Novel efficient blue light-emitting conjugated polymers: synthesis, optical properties, and thermal optical stability
Author(s): Xiao-Yu Cao; Hong Zi; Hua Lu; Jian Pei
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Paper Abstract

A series of blue light-emitting copolymers containing alternative dialkoxy-substituted phenylene group and the fluorene moiety with different functional groups at the C-9 bridge position have been prepared through the Suzuki polymerization in this contribution. The detailed investigation of the optical properties demonstrates that the spectral thermal and optical stability of P1-3 exhibit substantially enhanced resistance to both thermally and optically oxidation by the backbone modification strategy. Moreover, in comparison with P1 and P3, P2 with the spiro-junction shows much higher Tg and significantly improves resistance towards oxidation in the air, indicating that the spiro-junction is a better strategy to prevent the formation of ketonic defects or the migration of the exicitons to these defect sites. These properties have established our desired polymers as a family of promising candidate for optoelectronic applications.

Paper Details

Date Published: 12 January 2005
PDF: 10 pages
Proc. SPIE 5632, Light-Emitting Diode Materials and Devices, (12 January 2005); doi: 10.1117/12.593238
Show Author Affiliations
Xiao-Yu Cao, Peking Univ. (China)
Hong Zi, Peking Univ. (China)
Hua Lu, Peking Univ. (China)
Jian Pei, Peking Univ. (China)

Published in SPIE Proceedings Vol. 5632:
Light-Emitting Diode Materials and Devices
Gang Yu; Chuangtian Chen; Changhee Lee, Editor(s)

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