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Novel Guest-Host NLO Polyimide Based on Two-Dimensional Carbazole Chromophores

Published online by Cambridge University Press:  21 March 2011

Wen-Jang Kuo
Affiliation:
Dept of Chemical Engineering, National Tsing Hua University, Hsinchu, Taiwan, 300, ROC
Ging-Ho Hsiue
Affiliation:
Dept of Chemical Engineering, National Tsing Hua University, Hsinchu, Taiwan, 300, ROC
Ru-Jong Jeng
Affiliation:
Dept of Chemical Engineering, National Chung Hsing University, Taichung, Taiwan, 402, ROC
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Abstract

Taking advantage of the multifunctional characteristics of carbazole along with rational molecular design, several two-dimensional carbazole chromophores were acquired. Doping the chromophores into poly(ether imide), a series of NLO-active guest-host polymers were obtained. The compatibility between chromophores and poly(ether imide) was investigated by SEM and extraction experiment. After poling, these NLO poly(ether imide)s with large second-order nonlinearities were achieved. Correlation between structure and nonlinear optical characteristics, and the chromophore size effect on the thermal and temporal stability have been probed. Large rotational cone volumes make the two-dimensional chromophores possessing excellent orientational stability at 60.

Type
Research Article
Copyright
Copyright © Materials Research Society 2001

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References

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