高導電性透明導電高分子之研究

Investigations of Highly Conductive and Transparent Conducting Polymers

呂濬洋(Chun-Yang Lu)

指導教授 ： 吳忠幟

國立臺灣大學/電機資訊學院/光電工程學研究所/碩士(2013年)

https://doi.org/10.6342/NTU.2013.00125

摘要

透明導體在光電元件的發展應用上扮演一不可或缺的關鍵角色，由於目前主流的透明導體以氧化銦錫 (Indium Tin Oxide, ITO)、氟摻雜氧化錫(fluorine-doped tin oxide, FTO)等金屬氧化物為主，在製程上通常須使用較複雜的真空腔體設備且較昂貴的原料。此外，結合可撓曲性、可拉伸性的基板/軟性電子也將是未來方向。因此，本論文研究以發展出具有低製程/設備成本、低原料成本、基板成膜匹配性的透明導體。
本論文研究著重在提升導電高分子聚二氧乙基噻吩聚苯乙烯磺酸(poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) ,PEDOT:PSS)的導電性，以研究導電高分子PEDOT:PSS的厚度效應與添加修飾溶劑效應，探討成膜次數之堆疊機制和添加修飾溶劑濃度影響薄膜的導電性、奈米結構、化學組成、電化學特性及光學特性。

關鍵字

透明導體 ； 導電高分子 ； PEDOT:PSS ； 光電特性 ； 溶劑修飾

並列摘要

Transparent conductors play an indispensable role in the application development of optoelectronics. Currently, metal oxides (e.g. Indium Tin Oxide (ITO) and Fluorine-doped tin oxide (FTO), etc.) are main transparent conductors in use. However, their fabrication in general needs more complicated vacuum equipments and materials source are more expensive. In addition, they are not so compatible with flexible and stretchable substrates/electronics that will also be the directions of future. Therefore, there is a need to develop new transparent conductors that have low fabrication cost, low material cost and compatibility with variety of substrates.
In this thesis, we studied the conductivity enhancement of conducting polymer-poly(3,4 ethylenedioxythiophene):poly(styrenesulfonate)(PEDOT:PSS). We investigated influences/effects of thickness and co-solvent modification on PEDOT:PSS conducting polymer thin films. We studied how film stacking by multiple coatings and concentrations of co-solvents affect electrical conductivities, nanostructures, chemical compositions, electrochemical properties and optical properties.

並列關鍵字

transparent conductors ； conducting polymer ； PEDOT:PSS ； optoelectronic characteristics ； co-solvent modification

參考文獻

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