本實驗使用一個既簡單又環保的方法來合成導電高分子/金屬氧化物複合材料，水溶性聚?吩與五氧化二釩都是半導體，並具有電變色性質，兩者混成後所得複合物的導電性與電變色性質的變化，可提供設計新物質的參考。由複合物的XRD光譜得知水溶性聚?吩確實有嵌入五氧化二釩之層與層中間，TEM及SEM圖推得水溶性聚?吩在五氧化二釩中擔任分散劑的角色，二次離子質譜圖證明V、S及C的莫耳比在複合物膜中皆相似，意味著高分子鏈在V2O5中分佈得很均勻。電化學的結果顯示複合物比水溶性聚?吩或五氧化二釩有更多樣的顏色選擇性，聚合物含量高的複合物電化學穩定性可媲美水溶性聚?吩與五氧化二釩，在經過750圈的氧化-還原循環掃瞄後，其電流及電位值改變不大，此外當厚度約為1500埃時，(P3TOESH)0.96V2O5的ΔOD值為0.35，高於V2O5的0.09，厚度約為2500埃時，(P3TOESH)0.96V2O5的氧化應答時間為6秒，V2O5(2553埃)為8秒，此外厚度約為2500埃時，(P3TOESH)0.96V2O5的ΔOD值為0.48，高於水溶性聚?吩(2706埃)的0.013，厚度約為2500埃時，(P3TOESH)0.96V2O5的氧化應答時間為4秒，類似厚度的水溶性聚?吩為7秒。 Significant progress was found in the development of processable,conducting polymers. In this study, we use a simple method to synthesize the conducting polymer/metal oxide composites. Both water-soluble polythiophene and V2O5 are semiconducting materials with interesting electrochromic properties. Mixing water-soluble polythiophene with V2O5 may produce new materials with different electronic and electrochromic properties. The results may also provide the information for designing new materials with novel properties. X-ray diffraction patterns of the composites reveal that water-soluble polythiophene was intercalated into the layer gallery of V2O5 xerogel. Both TEM and SEM Micrographs suggest that water-soluble polythiophene acts as a dispersing agent for V2O5. SIMS data show that the mole ratios of V, S and C are similar through the who composite film, indicating that water-soluble polythiophene uniformly distributed in V2O5. Electrochromic studies display that the composites have various colors, depending on the mole ratio of water-soluble polythiophene and V2O5. Furthermore, the electrochemical stability of composite with high polymer content is as good as that of V2O5 and water-soluble polythiophene. When the thickness of (P3TOESH)0.96V2O5 film is about 1500Å, its ΔOD value (0.35) is higher than that of V2O5 (0.09). At the same time, its oxidizing response time is 6 seconds which is smaller than that of V2O5 (8 seconds). When the films thickness is about 2500Å, theΔOD value of (P3TOESH)0.96V2O5 is 0.48, which is higher than that of water-soluble polythiophene (0.013), and the reducing response time (4 seconds) is lower compared to the water-soluble polythiophene(7 seconds).
