Stabilization of the response time in photorefractive polymers

被引：29
|
作者：
Herlocker, JA [1 ]
Fuentes-Hernandez, C
Ferrio, KB
Hendrickx, E
Blanche, PA
Peyghambarian, N
Kippelen, B
Zhang, Y
Wang, JF
Marder, SR
机构：
[1] Univ Arizona, Ctr Opt Sci, Tucson, AZ 85721 USA
[2] Univ Arizona, Dept Chem, Tucson, AZ 85721 USA
来源：
APPLIED PHYSICS LETTERS | 2000年 / 77卷 / 15期
关键词：
D O I：
10.1063/1.1316077
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The optical and photoconductive fatigue of fast photorefractive polymers have been studied in a family of C-60-sensitized polymer composites containing styrene-based chromophores with varying ionization potential. Changes in response time and in photoconductivity were studied for exposures up to 10(4) J/cm(2). Increasing the chromophore ionization potential beyond that of the polyvinylcarbazole host was found to stabilize the response time. Studies of the electric-field dependence of the steady-state diffraction efficiency in various samples confirm the role of C-60 anions as possible traps. (C) 2000 American Institute of Physics. [S0003-6951(00)02141-0].
引用
收藏
页码：2292 / 2294
页数：3
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