The Influence of Chromophores on the Magnitude of Space-Charge Fields in Photorefractive Polymeric Composites

被引：1
|
作者：
Moon, In Kyu [1 ]
Kim, Do Young [2 ]
Kim, Nakjoong [2 ]
机构：
[1] Sungkyunkwan Univ, Dept Chem, Suwon 440746, Gyeonggi Do, South Korea
[2] Hanyang Univ, Dept Chem, Seoul 133791, South Korea
来源：
AUSTRALIAN JOURNAL OF CHEMISTRY | 2009年 / 62卷 / 12期
关键词：
SPEED; FILMS;
D O I：
10.1071/CH09107
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
This paper reports on the characterization of three poly(N-vinylcarbazole) (PVK)-based photorefractive composites with different non-linear optical (NLO) chromophores at an operating wavelength of 632.8 nm. The strength of the photoconductivity and the magnitude of the space-charge field (E(SC)) in the photorefractive composites are strongly affected by the chromophore's highest occupied molecular orbital (HOMO). The magnitude of ESC increased with the lowering of the HOMO level of the NLO chromophores in the PVK composites.
引用
收藏
页码：1655 / 1660
页数：6
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