Effects of Polythiophene as a Photosensitizer on Dynamic and Steady-State Photorefractive Performance in Polymeric Composites

被引:11
|
作者
Oh, Jin-Woo [1 ]
Choi, Jongwan [1 ]
Luong, Bich Thi [1 ]
Kim, Nakjoong [1 ]
机构
[1] Hanyang Univ, Dept Chem, Seoul 133791, South Korea
关键词
poly(3-hexylthiophene); fullerene; space charge field; refractive index modulation; PR grating buildup speed; GLASS-TRANSITION-TEMPERATURE; PHOTO-CHARGE GENERATION; EFFICIENCY; POLY(3-HEXYLTHIOPHENE); CHROMOPHORE; GRATINGS; FIELD; GAIN;
D O I
10.1007/s13233-009-0022-2
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
This study examined the effects of poly(3-hexylthiophene) (P3HT) as a photosensitizer on the dynamic and steady-state photorefractive (PR) performance of polymeric composites. The performance was measured in terms of the magnitude and buildup speed of the PR grating. Absorption quenching was observed in a PR composite that was doped with P3HT/fullerene (C-60). This absorption quenching was attributed to disordering of the P3HT chains, and charge transfer between P3HT and C-60. The magnitude and buildup speed of the PR grating were strongly dependent on space charge formation, which was affected by visible light absorption and the hole mobility.
引用
收藏
页码:8 / 13
页数:6
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