Frequency and Temperature Dependence of Dielectric Properties of Pure Poly Vinylidene Fluoride (PVDF) Thin Films

被引:35
|
作者
Yadav, Vikram S. [1 ]
Sahu, Devendra K. [2 ]
Singh, Yashpal [3 ]
Kumar, Mahendra [4 ]
Dhubkarya, D. C. [5 ]
机构
[1] Gautam Buddh Tech Univ, Lucknow, Uttar Pradesh, India
[2] Govt P G Coll, Dept Phys, Lakitpur, India
[3] Bundelkhand Inst Engn & Tech, Dept Comp Sci, Jhansi, Uttar Pradesh, India
[4] Gautam Buddh Tech Univ, Joint Controller Exam, Lucknow, Uttar Pradesh, India
[5] Bundelkhand Inst Engn & Tech, Dept Elect Engn, Jhansi, Uttar Pradesh, India
关键词
Poly Vinylidene Fluoride (PVDF); Space Charge Polarization; Dipole Orientation; ELECTRICAL-CONDUCTION; ETHYL CELLULOSE; RELAXATION; DEPOLARIZATION; POLYSTYRENE; ABSORPTION; ELECTRETS;
D O I
10.1063/1.3510553
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In this work we have evaluated the dielectric properties of Poly Vinylidene fluoride (PVDF) thin films of thickness (approximate to 20 mu m) as a function of temperature from 40-70(0)C and frequency varying from 500 Hz to 100 kHz respectively for Al-Al and Cu-Cu electrode configuration. The dielectric constant values increases with the increase in temperature. A broad peak is found at around (70 +/- 5)C-0. The maximum value of dielectric constant and dielectric losses were attributed to the phase transition of the polymer. The variation in dielectric constant and loss tangent suggest the net effect of some internal field within the polymer along with the external A.C. field.
引用
收藏
页码:267 / +
页数:3
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