智慧型玻璃運用相當廣泛，其中電致色變材料因具有獨特電化學與光學性質可使用於建築及汽車節能窗戶來調節室內溫度。本研究採用溶膠凝膠法沈積無機固態電解質氧化鉭薄膜，目的為改善傳統電致色變元件採用液態電解質會有漏液、裂解等封裝上不穩定的問題。此外，本研究藉由非離子型界面活性劑 (nonionic surfactant) 在溶液中形成有機微胞輔助成長，探討其對薄膜之成份、顯微結構、電致色變性質及離子傳導能力的影響。

實驗結果顯示熱處理後的氧化鉭薄膜為非晶型且具有高穿透率性質，初鍍膜之氧化鉭薄膜為堆積密度高，缺少多孔性之結構，不利於離子進出。然而，在界面活性劑 (F-127) 的輔助下之氧化鉭薄膜則呈現多孔性且鬆散的結構，且在微量的F-127添加下，可製備出中介孔 (2~50 nm) 之微結構。當添加量為0.002 g/mL-酒精時，在波長633 nm處，其著色去色之穿透率變化可達65％，且其在任何波長下均具有較高的光學密度。比較Ta2O5/WO3薄膜與WO3薄膜電致色變性質，循環伏安曲線圖相近，顯示氧化鉭具有離子傳導的能力。實驗中將電致色變半元件膜進行可靠度測試，經過1000次循環之後，其著去色穿透率改變不大，證明其薄膜的穩定性仍相當良好。

In recent years electrochromic materials with unique electrochemical and optical properties have been extensively investigated due to their potential applications such as smart window of architecture and vehicle to modulate the interior temperature. In this study, inorganic-solid-state electrolyte tantalum oxide thin films were deposited by sol-gel process in order to improve the traditional liquid electrolyte, suffering with leakage and deterioration. The nonionic surfactant was used as liquid template to investigate its effects on composition, microstructure, electrochromic properties and ion conductivity.

Experimental results indicate that tantalum oxide thin films were amorphous and highly transparent in nature. The pristine Ta2O5 film has high packing density and low porous structure that were unfavorable for ions transmission. However, the Ta2O5 films were porous and loose structure with the surfactant addition, and the mesoporous structure could be synthesized with small amount of F-127 addition. At the ratio of 0.002 g-F127/mL-ethanol, the transmission change between colored and bleached states at a wavelength of 633 nm was about 65%. A comparison or cyclic voltammetry curves between Ta2O5/WO3 film and WO3 film reveals that tantalum oxide film is capable of conducting ions. After 1000 cycles test, assembled the electrochromic semi-device performs good transmittance change and good quality stability.

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