共軛高分子因為具有獨特的光學與電的特性而被廣為探討，由於這兩個材料間有很好的電子受體予體能量轉換效應，共軛高分子與富勒烯的複合材料被廣泛地應用在光電元件上。然而，這些複合材料只能溶於有機溶劑，這樣製程需要額外的經費去處理這些有機溶劑。在本研究中，我們製備了一個對環境友善的水溶性共軛高分子/富勒烯複合材料。首先，我們將疏水的聚噻吩乙酸轉變成雙親性高分子，使其藉著擁有親水端而能溶於水中。然後，利用這個雙親性的共軛高分子將疏水的碳球帶入水中，這個複合材料不僅可以溶於水，且保有了原本的能量轉換效應。我們利用DLS、SEM、TEM證實這個複合材料是約一百奈米的殼¬-核奈米粒子，也利用PL及XPS證實存在於此複合材料中的能量轉換效應。在確定這個水溶性複合材料能夠穩定地形成之後，在文中討論像是熱穩定度與導電性一些特性，值得注意的是，這個複合材料的導電度可以達到1.85 x 10-1 S/cm，比原本疏水的共軛高分子的導電度高出了十的四次方。文中呈現水溶性共軛高分子/富勒烯複合材料的製備與特性探討。

Conjugated polymers possess unique optical and electrical properties are investigated. These conjugated polymer/fullerene composites are widely used for optoelectronic devices due to their effective donor-acceptor energy transfer. However, they are only soluble in organic solvent that is harmful for the environment. In this study, we present and develop an environmentally friendly water-soluble conjugated polymer/fullerene composite. The conjugated polymer was poly(3-thiophene acetic acid) and it was converted to an amphiphilic polymer to make it water-soluble. We adopted the characteristic of the amphiphilic polymers to encapsulate fullerenes in water as since fullerenes are hydrophobic. The composites are not only soluble in water but also retain the donor acceptor properties. The 100 nm core-shell structures were investigated and confirmed by DLS measurement, SEM, and TEM. The existence of donor acceptor energy transfer were confirmed by PL and XPS. The characteristics of the composite, such as thermal stability and electrical conductivity, also were determined. Importantly, the conductivity of this newly-developed nanoparticles can be increased to 1.85 x 10-1 S/cm, which is higher than 4 orders of magnitude of poly(3-thiophene methyl acetate). Preparation and the characteristics of the water-soluble ionized PTAA/fullerene composite were presented in this study.

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