染料敏化太陽能電池具有可撓性、製程簡易、材料成本低廉等優點，但光電轉換效率仍低於11 %。本研究期望利用表面電漿子共振效應來提升吸光之染料分子吸收係數，以增加其光電轉換效率。
　　本研究以射頻磁控濺鍍法在玻璃與FTO基板上製備銀薄膜與金薄膜，並做真空退火以得到銀與金之奈米粒子，探討銀與金所引發之表面電漿子共振效應；再將染料分子滴覆其上，探討銀與金對於染料分子吸收係數之影響。結果顯示：表面電漿子共振效應之特性吸收峰與特性散射峰之波長位置，隨著奈米粒子粒徑增加，發現會往長波長位移；其吸收強度與散射強度，銀皆高於金。銀與金所引發之表面電漿子共振效應對於染料分子吸收係數的確具有增強之效果，且銀的效果優於金。在玻璃基板上，最佳效果為1.43倍(銀奈米粒子平均粒徑為83 nm)；而在FTO基板上，最佳效果為2.97倍(銀膜厚為3 nm時，微結構呈現多邊形之奈米粒子與島狀分布)。金在FTO基板上，最佳效果為2.04倍(金奈米粒子平均粒徑為55 nm)。
　　本研究對於染料敏化太陽能電池電極中所使用之染料分子，利用表面電漿子共振效應，提供一個提升其吸收係數之方法，對於光電轉換效率之改善，相信極具潛力。

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