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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 284-287Leakage and Fatigue Characteristics of...

Leakage and Fatigue Characteristics of Polyvinylidene Fluoride Film

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Abstract:

The leakage and fatigue characteristics of polyvinylidene fluoride (PVDF) are investigated for flexible electronics. The crystallization, frequency responses, leakage currents, current-voltage characteristics, and fatigue characteristics of PVDF film are measured using X-ray diffraction and an electrometer. Results show that a PVDF model with a resistive load exhibits high-pass filter characteristics. The frequency band of PVDF film increases with increasing resistive load and capacitance. The break frequencies for 100 kΩ, 300 kΩ, 700 kΩ, and 1 MΩ at the break frequency are 611, 207, 88, and 61 Hz, respectively. The hysteresis area of ΔH slightly increases with increasing input voltage. The leakage current of PVDF film is higher for a lower delay time under a given applied electric field. The average leakage currents for delay times of 10 and 1000 ms are 0.565 and 73.8 pA, respectively. The magnitude of the current values increases with decreasing delay time at a given drive voltage. PVDF film induced larger degradation when the number of stress cycles was increased to about 105 cumulative cycles.

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Periodical:

Applied Mechanics and Materials (Volumes 284-287)

Pages:

158-162

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.284-287.158

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Online since:

January 2013

Authors:

Wen Yang Chang, Cheng Hung Hsu, Chih Ping Tsai

Keywords:

Electromechanical, Fatigue, Frequency Response, Leakage Current, Polyvinylidene Fluoride (PVDF)

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