本篇論文為使用一透明陽極氧化銀薄膜取代一般所使用之陽極材料-銦錫氧化物(ITO)於單異質接面有機太陽電池上，其陽極為利用不同氧化方式於銀表面產生氧化銀薄膜，並進而製作成元件來探討氧化銀薄膜對於元件特性的影響。
首先我們嘗試最佳化單異質接面有機太陽電池結構，其結構為ITO/CuPc (X nm)/C60 (Y nm)/BCP (10 nm)/Al (100 nm)。我們先調變CuPc 的膜厚到達最高效率；之後再改變C60 的膜厚在以達到最佳結構的最高效率，此元件的開路電壓為0.4 伏特，短路電流密度為4.34 mA/cm2，填充因素為60.1%，功率轉換效率為1.05%。
接著我們選擇了具有低電阻率(6.45×10-8 Ω-cm)及氧化後之功函數可提升(4.79 eV)使改善陽極附近的電洞傳輸能力之銀金屬薄膜為陽極材料，而銀薄膜厚度在15 nm 時之特性最佳，包括具有較高的透光性(70.1%)及較低的片電阻(4.23Ω/square)。因此，加入最佳化銀陽極薄膜及主動層厚度之元件結構為glass/Ag (15nm)/CuPc (30 nm)/C60 (40 nm)/BCP (10 nm)/Al (100 nm)。
接著我們嘗試六種不同氧化方式來進行銀薄膜表面氧化處理，包含:1.在加熱平台上氧化；2.紫外光臭氧處理；3.浸泡雙氧水溶液；4.PECVD中通入氧氣加熱；5.PECVD中之氧電漿處理；6.臭氧水溶液處理等六種氧化處理。上述六種氧化處理方式中，以浸泡臭氧水溶液六秒所製成的氧化銀薄膜在製作成太陽電池元件後，在AM1.5的量測範圍下，擁有最高的功率轉換效率0.99%，相較於利用傳統銦錫氧化物(ITO)作為陽極的元件之效率1.05%是非常接近的，所以有機太陽能電池利用氧化銀薄膜為元件的陽極是有希望能夠取代傳統的ITO為陽極的材料之一。
最後我們在陽極氧化銀薄膜與CuPc 間插入一具有最佳厚度的金薄膜
(0.5nm)，其最主要的目的為利用金的功函數來提升電洞傳輸能力，而在氧化銀薄膜上鍍ㄧ極薄的金可降低氧化銀表面的粗糙度以改善陽極氧化銀與CuPc 之表面接觸特性。同時也在六種具有最佳氧化處理條件之氧化銀薄膜上加入最佳厚度的金薄膜製作成元件，其中又以在PECVD 通入1W 氧電漿15 秒，及在PECVD 中通氧氣加熱125℃15 秒，及以臭氧水處理6 秒的氧化銀薄膜所製作成的元件具有
較高功率轉換效率1.08%、1.09%以及1.2%。因此，以氧化銀及一極薄之金薄膜為有機太陽電池之陽極具有極大能取代ITO 為陽極的能力。

In this thesis, we demonstrate a single donor-acceptor heterojunction organic photovoltaic (OPV) cell using a transparent Ag/silver oxide anode, which can replace
indium tin oxide (ITO).
At first, we try to optimize the best structure in OPV cells whose layer in order as ITO glass/CuPc (X nm)/C60 (Y nm)/BCP (10 nm)/Al (100 nm), and then modulate the
thickness of CuPc (electron donor layer) X and C60 (electron acceptor layer) Y to get the highest power conversion efficiency of this structure, which are 0.4 V of
open-circuit voltage (VOC), 4.34 mA/cm2 of short-circuit current density (JSC), 60.1% of fill factor (FF), and 1.05% of power conversion efficiency (PCE).
Secondly, we choose Ag as anode owing to its low resistivity as 6.45×10-8 Ω-cm and the higher work function on oxidized Ag from 4.6 eV to 4.79 eV formed the better
hole transportation between anode and CuPc, which higher than that of ITO, 4.73 eV. Then, we optimize the thickness of Ag as 15 nm with the better properties of higher
transmittance, 70.1%, and lower sheet resistance, 4.23 Ω/square, to fabricate devices with the optimal thickness of active layers, whose structure in order as glass/Ag (15
nm)/CuPc (30 nm)/C60 (40 nm)/BCP (10 nm)/Al (100 nm).
Thirdly, we oxidize the surface of Ag with six kinds oxidized treatments, including heating on hot plate, UV-ozone method, immersing in a hydrogen peroxide
solution, heating under oxygen atmosphere in PECVD, oxygen plasma treatment in PECVD, and ozone water treatment. The best performance of the best treatment on Ag
anode in OPV cell is under ozone water treatment for 6 seconds, whose power conversion efficiency is approximate 0.99% at simulated AM 1.5 illumination closed
to the 1.05% ITO-based OPV cell. OPV cells using such surface-modified silver anode shows better performance competed with conventional ITO-based devices.
Finally, the optimal thickness of Au as 0.5nm is inserted between CuPc and silver oxide anode formed by the best treatments of oxygen plasma treatment in PECVD,
125℃ heating in PECVD, and ozone water treatment to fabricate the devices with the best performances of 1.08%, 1.09% and 1.2%, respectively. Thus, the Ag/silver
oxide/Au show very high potential to be used as anode in our OPV cells to replace ITO.

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