| 학회 |
한국고분자학회 |
| 학술대회 |
2004년 가을 (10/08 ~ 10/09, 경북대학교) |
| 권호 |
29권 2호, p.393 |
| 발표분야 |
분자전자 부문위원회 |
| 제목 |
Synthesis and Characterization of Mesophasic Photoconductive Polymers for Photorefractive Applications |
| 초록 |
New mesophasic photoconductive polymer PPT-TPA consisting of wholly aromatic rigid backbone of poly(p-phenyleneterephthalate), PPT and pendent hole-transporting triphenylamine (TPA) groups by attaching at end of oxyalkyl spacers was synthesized. The photorefractive composite contains photoconductor PPT-TPA, the chromophore diethylaminodicyanostyrene (DDCST), and the sensitizer C60. Although no plasticizer was added, the glass transition temperature Tg of the composite reveals the value of 15 oC as a low-Tg photorefractive material. We investigate the correlation between the obtained mesophase structure and its optical/physical properties by measuring X-ray diffraction, photoconductive and photorefractive properties. It is also compared to similar polymer PPT-CZ composites with different mesophase structure studied previously. Despite of a lower photoconductivity of the new photorefractive composite PPT-TPA(n=10):DDCST:C60 this material shows a higher photorefractive sensitivity Sn2 of 2 ± 0.2 cm2/kJ at E =50 V/µm than one of previous similar composite. |
| 저자 |
권성지1, 권오필2, 이석현1, Mojca Jazbinsek2, Peter Günter2
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| 소속 |
1아주대, 2Swiss Federal Institute of Technology |
| 키워드 |
photorefractive; photoconducting polymer
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| E-Mail |
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