Design of direct and indirect wind energy harvest systems

Ting, Yung; Gunawan, Hariyanto; Sugondo, Amelia; Hsu, Kun-Lin

doi:10.1109/icmee.2010.5558426

Cited by 2 publications

(1 citation statement)

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“…Usually β-phase is the most useful phase for its piezoelectric and ferroelectric properties, which can be achieved from the α-phase by mechanical stretching or poling [10]. Including our previous studies [11], quite a few of researches have been investigated on the piezoelectric effect in the process of stretching the PVDF films [12][13][14][15][16][17][18]. Since stretching process implies skeleton chain being oriented particularly at stretching direction, transformation of α-into β-phase is largely occurred.…”

Section: Introductionmentioning

confidence: 98%

A New Approach of Polyvinylidene Fluoride (PVDF) Poling Method for Higher Electric Response

et al. 2013

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Good response, in particular high sensitivity, of polyvinylidene fluoride (PVDF) attracts a lot of research works on its manufacturing process and applications. Polarization is an important factor that is influential to the performance of PVDF. In this article, a new polarization method using ITO (Indium Tin Oxide) glass is proposed. Different from the conventional poling method using metal eletrode coated onto PVDF film, ITO glass is used as electrode to transmit the electric field voltage into PVDF film for poling. With the advantage of applying higher electric field in the process of polarization and eliminating the occurrence of flashover and arcing efficiently, this approach can thus make PVDF film gain better electric output response. Also, thinner film is constructed would be another advantage of sensitivity improvement. Comparison with conventional method for regular polarization area is carried out by using both FTIR and DSC equipment. Piezoelectric charge constant d 33 and electricity output response as well as sensitivity of PVDF are measured in experiment, which indicate ITO glass poling method is superior to conventional technique.

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