本論文利用磁控式射頻濺鍍系統鍍製ZnO/Ag/ZnO薄膜，作為反置型有機太陽能電池之電子傳輸層，藉由奈米銀粒子的表面電漿效應，提升電子傳輸層於可見光波段的穿透率，使短路電流密度提升，進而改善整體元件轉換效率，實驗結果ZnO/Ag/ZnO多層結構薄膜最佳條件為銀厚度8 nm，轉換效率由7.25%提升至8.13%。另外加入奈米銀粒子於PTB7：PCBM混合作為主動層材料，藉由奈米銀粒子於主動層中的散射效應，提升主動層材料的吸光能力，提升激發電子電洞對之機率，增加短路電流密度進而改善元件轉換效率，實驗結果為主動層最佳比例條件為PTB7：PCBM：Ag NPs=10：15：0.4 (mg)，轉換效率由7.25%提升至7.55%。結合最佳主動層摻雜奈米銀比例及最佳ZnO/Ag/ZnO電子傳輸層作為反置有機高分子太陽能電池元件，元件轉換效率為8.30%。

In this work, the ZnO/Ag/ZnO multilayer film was applied to inverted polymer solar cells (IPSCs) as electron transportation layer to improve power conversion efficiency (PCE) of IPSCs. By inserting a nano-sized Ag layer between bottom ZnO and top ZnO layer, the light transmission of electron transportation layer could be enhanced resulting from local-ized surface plasmon (LSP) of silver nanoparticles at visible wavelength. The power con-version efficiency of IPSCs with ZnO/Ag/ZnO (Ag=8 nm) electron transportation layer improved from 7.25% to 8.13%. Besides, silver nanoparticles was doped into the active layer (PTB7：PCBM) of IPSCs. The light absorption of devices could be enhanced result-ing from optical re-flection by scattering of silver nanoparticles. Compared to the active layer without silver nanoparticles, the power conversion efficiency of IPSCs with PTB7：PCBM：Ag NPs (10：15：0.4) active layer improved from 7.25% to 7.55%. Combinating ZnO/Ag/ZnO electron transportation layer and active layer with silver nanoparticles, the best performance of the IPSCs was obtained that power conversion efficiency was 8.30%.

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第四章 添加奈米銀粒子於主動層及ZnO/Ag/ZnO之多層結構反置有機高分子太陽能電池研究
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