Pyroelectric properties of electrically poled photoaddressable polymers

被引:12
作者
Korneev, N
Ramirez, OF
Bertram, RP
Benter, N
Soergel, E
Buse, K
Hagen, R
Kostromine, SG
机构
[1] Inst Nacl Astrofis Opt & Elect, Puebla 72000, Mexico
[2] Univ Bonn, Inst Phys, D-53115 Bonn, Germany
[3] Bayer AG, Dept Cent Res, D-51368 Leverkusen, Germany
关键词
D O I
10.1063/1.1491282
中图分类号
O59 [应用物理学];
学科分类号
摘要
In this article, we present pyroelectric investigations of electrically poled side-chain polymers containing mesogenic disazobenzene chromophores using a very simple setup. Heating above the glass temperature (about 104degreesC) usually eliminates the pyroelectric effect of the sample. However, in samples with an indium tin oxide/aluminum electrode design, a self-poling effect is observed. The pyroelectric coefficients of electrically poled samples reach values of up to 0.2 muC/(m(2)K). From this, we conclude that the strongly anisometric side chains can be reoriented, and that their degree of alignment is about 3%. (C) 2002 American Institute of Physics.
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页码:1500 / 1503
页数:4
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