Modified-PVK-based Photorefractive Three-Component Low-Tg Composites
WANG Feng1 , CHEN Zhi-jian1 , GONG Qi-huang1 , CHEN Yi-wang2 , CHEN Hui-ying2
1 Department of Physics, Mesoscopic Physics Laboratory,
2 Department of Chemistry, Peking University, Beijing 100871
Modified-PVK-based Photorefractive Three-Component Low-Tg Composites
WANG Feng1 ;CHEN Zhi-jian1 ;GONG Qi-huang1 ;CHEN Yi-wang2 ;CHEN Hui-ying2
1 Department of Physics, Mesoscopic Physics Laboratory,
2 Department of Chemistry, Peking University, Beijing 100871
关键词 ：
42.70.Jk ,
42.65.Hw
Abstract ： Two modified poly(N-carbazole), poly (2-carbazolylethyl methacrylate) (PCEMA) and poly(3-carbazolylpropyl methacrylate) (PCPMA), were synthesized. Doped with electro-optic (EO) chromophore 1-n-butoxyl-2,5-dimethyl- 4-(4'-nitrophenylazo)benzene and the photosensitizer 2,4,7-trinitro-9-fl uorenone, the EO response and photore- fractive (PR) effect were studied experimentally. Due to the shorter spacer between the carbazolyl and the main-chain and thus a higher glass-transition-temperature Tg , PCEMA-based composite exhibited an effective EO coefficient as only a quarter as that in PCPMA-based composite. However, a slight higher two-beam coupling coefficient and much faster PR response were observed in the former. It was suggested that both the spacer length and the polymerization degree changed the Tg and the number density of traps, which decided the EO and PR
Key words ：
42.70.Jk
42.65.Hw
出版日期: 1999-05-01
:
42.70.Jk
(Polymers and organics)
42.65.Hw
(Phase conjugation; photorefractive and Kerr effects)
引用本文:
WANG Feng;CHEN Zhi-jian;GONG Qi-huang;CHEN Yi-wang;CHEN Hui-ying
. Modified-PVK-based Photorefractive Three-Component Low-Tg Composites[J]. 中国物理快报, 1999, 16(5): 353-355.
g Composites. Chin. Phys. Lett., 1999, 16(5): 353-355.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y1999/V16/I5/353
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1999, Vol. 16 
