奈米銀線製備與摻混於聚醯亞胺之透明電極及其應用之研究

Abstract

本論文分成四個章節，第一章為總體序論。第二章節包含了利用高長徑比奈米銀線和透明無色聚醯亞胺製備透明導電電極。第三章節是以此透明導電電極進行電致變色元件與除霧裝置的應用。第四章節為結論。此研究探討奈米銀線與透明無色聚醯亞胺的製備與基本性質，此實驗製得之奈米銀線其平均長徑比高於350，其高長徑比顯示非常適合作為透明電極的材料；聚醯亞胺不但展現極高熱穩定性且在可見光區具有高穿透度與無色等良好的光學性質，藉由摻混透明無色的可溶聚醯亞胺於奈米銀線中作為黏著劑可以保護奈米銀線以免剝落，利用此方法製備的透明電極展現的優秀的導電能力與極佳的光學穿透度，此外，以此方法塗佈於透明可撓聚醯亞胺基材的透明電極展現優秀的導電性即使在彎曲的時候。此外在第三章的部分，我們探討了此奈米銀線與聚醯亞胺的複材電極作為電致變色元件與除霧裝置的應用，且利用奈米銀線所製備之裝置展現出良好得穩定性。

This study has been separated into four chapters. Chapter 1 is general introduction. Chapter 2 includes the synthesis of silver nanowires and colorless polyimide and the preparation of highly flexible transparent electrodes. Chapter 3 describes the applications of transparent electrodes based on silver nanowires and colorless polyimide hybrids for electrochromic and defogging devices. Chapter 4 is conclusions. The synthesis and basic characterization of silver nanowires and colorless polyimide were investigated. The average aspect ratio of preparesd silver nanowires was higher than 350, which was high enough to be used as transparent electrodes. The polyimides exhibited not only excellent thermal stability but also good optical transparency properties. By introducing such colorless and thermal stable polyimides to serve as binder could protect silver nanowires from peeling off. These silver nanowires/polyimide hybrids electrodes showed good conductivity and high transmittance. Furthermore, these hybrids coated on flexible polyimide substrates also exhibited good conductivity even on folding. Moreover, the application of these transparent electrodes for electrochromic and defogging devices were discussed in chapter 3. The devices fabricated by silver nanowires and colorless polyimde hybrids also showed good stability.