INFLUENCE OF MOISTURE IN STEP-VOLTAGE MEASUREMENTS OF PVDF

被引：6

作者：

FARIA, RM

NOGUEIRA, JS

ALVES, N

机构：

[1] Instituto de Fisica e Quimica de Sāo Carlos - USP, Brazil, 13560 Sāo Carlos SP

[2] Departamento de Fisica, Universidade Federal do Malo Grosso, Cuiaba, MT

[3] Pdcuidade de CiCncias e Ecnologia-UNESP

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 1992年 / 25卷 / 10期

关键词：

D O I：

10.1088/0022-3727/25/10/019

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Step-voltage current measurements carried out with commercial poly(vinylidene fluoride) (PVDF) under vacuum showed a prominent peak in the charging current when a sample had previously been in contact with a humid environment. This effect tends to disappear in subsequent measurements performed under the same experimental conditions, giving evidence that it is connected with extrinsic carriers which are swept out of the sample by the external electric field. A model based on a field-dependent ionic dissociation of water molecules absorbed by the bulk of the sample was developed to explain the phenomenon.

引用

页码：1518 / 1521

页数：4

共 12 条

[1] ELECTRICAL-CONDUCTION AND POLARIZATION PHENOMENA IN POLYMERIC DIELECTRICS AT LOW FIELDS [J].