POLARIZATION OF VDF-TRFE COPOLYMER FILMS AT ELEVATED-TEMPERATURE

被引：7

作者：

TOLRA, CL

ALQUIE, C

LEWINER, J

机构：

[1] Laboratoire d’Electricité Générale, E. S. P. C. I, Paris

来源：

IEEE TRANSACTIONS ON ELECTRICAL INSULATION | 1993年 / 28卷 / 03期

关键词：

D O I：

10.1109/14.236213

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The buildup of the polarization of VDF-TrFE copolymer films, at room temperature and after various thermal treatments, has been studied using the PWP method. This method allows the nondestructive measurement of the homogeneity of the piezoelectric coefficient. In this paper, we have polarized the samples at 100-degrees-C and analyzed the influence of different thermal treatments before polarization, and of the insulator-electrode interfaces. The behavior of the copolymer is compared to that described previously for poling experiments made at room temperature. The effect of electron injection at the cathode by non-blocking electrodes is clearly proved.

引用

页码：344 / 348

页数：5

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