本論文旨在探討將二氧化鈦與三氧化鎢做結合並分析其電致色變與光催化特性。實驗首先以磁控式濺鍍沉積純鎢薄膜，利用熱化學氣相沉積系統對純鎢薄膜進行二步退火的方式成長三氧化鎢奈米線，接著在沉積純鈦薄膜於三氧化鎢奈米線上，最後再利用熱化學氣相沉積系統合成出二氧化鈦/三氧化鎢核殼結構。我們藉由場發射電子顯微鏡觀察二氧化鈦/三氧化鎢核殼結構之表面型態，並利用X-ray繞射儀分析其晶格結構。接著利用電化學分析儀與紫外光/可見光光譜儀證實其結構有很高之擴散係數(8.6×10-10 cm2/s)，很快的著、去色響應時間(著色時間2.9s，去色時間0.8s)以及有很好的穿透率差異(36.57)與光學密度(0.72)，其著色效率達到了110.8 cm2/C，最後利用霍氏轉換紅外光譜儀與水接觸角量測儀證實其結構擁有良好的光催化特性。
實驗接著以磁控式濺鍍沉積純鎢薄膜，然後在沉積純鈦薄膜於純鎢薄膜上，利用熱化學氣相沉積系統對純鈦/純鎢薄膜進行退火合成出二氧化鈦/三氧化鎢複合結構。我們利用電化學分析儀與紫外光/可見光光譜儀得出其結構有很高之擴散係數(1.8×10-9 cm2/s)，很快的著、去色響應時間(著色時間5.1s，去色時間2.6s)以及有很好的穿透率差異(48.5)與光學密度(1.09) ，其著色效率達到了194.64 cm2/C，最後利用霍氏轉換紅外光譜儀與水接觸角量測儀得出其結構擁有良好的光催化特性。
因此，將二氧化鈦與三氧化鎢結合之電致色變元件相信是更適合作為智慧型節能玻璃未來研究方向。

The purpose of this research is to combine the titanium oxide material with tungsten oxide material, and we analyze its characteristic of electrochromism and photocatalysis. In this work, the tungsten films were deposited on ITO substrate and prepared in reactive DC magnetron sputtering system. The as-deposited samples were subsequently subjected to thermal annealing in quartz tube furnace with a 2-step heat treatment. The tungsten oxide nanowires were synthesized self-catalytically on ITO substrate. Then the titanium films were deposited on the tungsten oxide nanowires. After that the as-deposited samples were subsequently subjected to thermal annealing in quartz tube furnace with a 2-step heat treatment. The TiO2/WO3 core-shell structure was synthesized finally. The electrochemical analysis shows the TiO2/WO3 core-shell structure have a high diffusion coefficient (8.6×10-10 cm2/s), fast electrochromic response time (coloration time 2.9s, bleaching time 0.8s), tremendous transmittance difference (36.57%), and beneficial ability of photodegradation.
Furthermore, the tungsten films were deposited on ITO substrate and prepared in reactive DC magnetron sputtering system. Then the titanium films were deposited on the as-deposited samples. The TiO2/WO3 composite structure was finally synthesized by annealing the Ti/W films. The electrochemical analysis shows the TiO2/WO3 composite structure have a high diffusion coefficient (1.8×10-9 cm2/s), fast electrochromic response time (coloration time 5.1s, bleaching time 2.6s), tremendous transmittance difference (48.5%), and beneficial ability of photodegradation.
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Therefore, the electrochromic device with the combination of titanium oxide and tungsten oxide will be suit for the development of energy-saving smart windows.

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