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題名 | Optical Attenuation for Complementary Electrochromic Devices: Application to the Tungsten Oxide-Polyaniline System=互補式電致色變元件之光學調幅:應用於三氧化鎢/聚苯胺系統 |
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作者姓名(中文) | 何國川; 柯惠棋; 陳林祈; | 書刊名 | Journal of the Chinese Institute of Chemical Engineers |
卷期 | 33:6 2002.11[民91.11] |
頁次 | 頁657-667 |
分類號 | 460.02 |
關鍵詞 | 互補式電致色變元件; 光學調幅; Charge capacity; Electrochromic; Optical attenuation; Polyaniline; Tungsten oxide; |
語文 | 英文(English) |
中文摘要 | 本研究探討兩個可逆電極同步工作之互補式電致色變元件的光學調幅。電致色變薄膜電極的穿透率與鍍層之電化學及光學性質有關。經由結合兩電極之電化學及光學性質,可推導出一適當的穿透率方程式以描述互補式電致色變元件特性的轉變。為了要測試這個模型是否準確,對混合有機以及無機物的互補式電致色變元件進行研究,結合三氧化鎢和聚苯胺薄膜與導氫離子高分子電解質構成一互補式電皮色變元件。三氧化鎢以聚菜胺薄膜的著色效率可由光譜電化學的量測獲得。所量測的電致色變元件光學調幅與利用測量個別薄膜得到參數所構成的模型預測值相當一致。此外,經由理論的分析以及實驗的結果證實,為了要達到互補式電致色變元件最大的光學調幅,兩電致色變層之電荷密度必須要互相搭配。 |
英文摘要 | The optical attenuation of complementary electrochromic devices (ECDs) with two reversible electrodes operating in tandem is presented. The transmittances of electrochromic thin film electrodes are related to the electrochemical and optical properties of each coated electrochromic (EC) layer. By combining the electrochemical and optical properties of these two electrodes, a general variable transmittance function suitable for describing the switching characteristics of complementary ECDs is developed. To test the validity of the model, hybrid inorganic/organic complementary ECD, comprising a tungsten oxide (W□) and polyaniline (PAni) thin film couple in combination with a proton-conduction polymer electrolyte, is studied. Spectroelectrochemical measurements were performed in order to obtain the coloration efficiencies of both W□ and PAni thin films. The measured optical attenuation for the ECD is in good agreement with the model prediction using the parameters obtained form the individual thin film measurements. Furthermore, it has been verified, both theoretically and experimentally, that the charge capacities of the two EC layers have to be matched in order to achieve the maximum optical attenuation. |
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