ITO電極法提升PVDF高分子壓電材料之形變量與發電量之研究

A Study of Deformation and Electricity Enhancement of Piezoelectric PVDF using ITO Polarization Method

李學尚(ARIANTO JUNAEDI)

指導教授 ： 丁 鏞

中原大學/工學院/機械工程研究所/碩士(2010年)

https://doi.org/10.6840/cycu201100864

摘要

摘 要

聚偏氟乙烯(PVDF)的性能決定於材料特性、變形量、電路設計的相關因素，而其中極化處理(極化電壓和極化時間)是最重要的程序，本研究之重點著重於如何發展PVDF以得到更高的電能輸出。本研究中PVDF製作將嘗試四種方式：利用表面塗佈銀膠的傳統單壓電晶片型式；串聯PVDF的方式而成的堆疊型式；zig-zag的方式是在表面上途佈類似於指叉型電極；銦錫氧化物(ITO)是一種不同於傳統的新型極化方式，銦錫氧化物之玻璃材質可直接進行極化，代替傳統銀膠塗佈電極的形式。在結構方面，將針對上述四種方式分別設計懸臂樑和耐壓結構進行性能評估。本研究發現以銦錫氧化物之玻璃材質的極化方式来代替塗佈銀膠電極的程序，可提供較高的電能和减少PVDF的厚度。本研究所製作出的PVDF可用於力感測與發電用途，最後透過與力感測實驗與風力發電實驗證實所設計之ITO方式製作之PVDF可獲得最大靈敏度為 ，最大電能為 ，均遠高於傳統單壓電晶片型式及串聯堆疊式型式以及zig-zag型式。

關鍵詞: 聚偏氟乙烯、以銦錫氧化物、風力發電、感測器。

關鍵字

感測器 ； 以銦錫氧化物 ； 風力發電 ； 聚偏氟乙烯

並列摘要

Abstract

Polyvinylidene fluoride (PVDF) is one of piezoelectric polymer which has been popularly used in miscellaneous applications. Using the piezoelectric direct effect, PVDF will generate electricity while encountering external mechanical input. Material property, mechanical deformation, and circuitry design are three correlated factors that determine the performance of PVDF. In particular, the poling process (either for poling voltage and poling time) is important for better piezoelectric effect. How to develop material with higher response of electricity output is the focus in this study. A traditional unimorph PVDF with single layer is coated with silver ink, and a stack type PVDF with multiple layers in series connection, as well as a zig-zag type PVDF are made and investigated. Moreover, a new approach of different polarization method using ITO (Indium Tin Oxide) is also developed. Instead of using silver ink in electrode coating process, ITO glass is used to directly embark poling. Cantilever and pressing structures are designed with four types of PVDF for performance evaluation. In experiment, the new approach in polarization with ITO glass has the advantages of providing higher electricity and reducing the thickness of PVDF for no use of silver ink coating. In the application of force sensor and energy harvest, the PVDF made by ITO can obtain maximum sensitivity of about ±714 mV/N, and maximum power about ±3.25 µW, which are superior to other three methods.

Keywords: PVDF, ITO, energy harvest, sensor.

並列關鍵字

PVDF ； sensor ； energy harvest ； ITO

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