1991年，瑞士的 M. Grätzel團隊研發出了一種染料敏化太陽能電池結構，以白金對電極、二氧化鈦工作電極、染料和電解液組成，此種太陽能電池具有製程簡單、成本低廉、以及高效率的優點。由於白金電極的價格昂貴，使整體的成本上升，且元件內部存在著電子發生復合、進而使轉換效率降低的問題，因此需要尋找替代材料，以降低成本和提高轉換效率。
本研究以奈米複合材料製備染料敏化太陽能電池的工作電極和對電極，研究內容主要分為三個部分，首先第一部分以氧化鐵和石墨烯的複合材料，作為染料敏化太陽能電池的對電極材料，並分析其表面形貌、元素組成和電化學特性，並製成元件，量測元件之阻抗頻譜、轉換效率、和外部量子效率。實驗結果顯示，在Fe2O3/Gn 1:2的比例下，元件效率可達到7.58%。
第二部分以二氧化鈦和二氧化錫複合材料，作為染料敏化太陽能電池的工作電極，並分析其表面形貌、元素組成和吸光率，並製成元件，量測元件之阻抗頻譜、轉換效率、和外部量子效率。實驗結果顯示，在TiO2+SnO2 3wt%的比例下，元件效率由未做摻雜的6.97%提升至7.76%。
最後第三部分以氧化石墨烯和鈷金屬錯合物，作為染料敏化太陽能電池對電極材料，以鈷作為還原劑，將氧化石墨烯還原成石墨烯，並作為對電極的催化中心，接著分析其表面形貌、元素組成和電化學特性，並製成元件，量測元件之阻抗頻譜、轉換效率、和外部量子效率。實驗結果顯示，在GO/Co 1:3的比例下，元件效率可達到6.57%。

In 1991, the Swiss M. Grätzel team developed a dye-sensitized solar cell (DSSC), which consists of platinum counter electrode, titanium dioxide working electrode, dye, and electrolyte. Due to the high price of platinum counter electrodes, the overall cost is expensive, and there is a problem of recombination of electrons inside the device, which reduces the conversion efficiency. Therefore, it is necessary to find alternative materials to reduce costs and improve conversion efficiency.
In this study, nanocomposites were used to prepare the working electrodes and counter electrodes of the dye-sensitized solar cells. The research is mainly divided into three parts. First, the composite materials of iron oxide and graphene were used as the counter electrodes of the dye-sensitized solar cell. The surface morphology, element composition, and electrochemical characteristics of the nanocomposites were analyzed. The DSSCs were fabricated and the impedance spectrum, conversion efficiency, and external quantum efficiency of the devices were analyzed. The experimental results showed that when using the Fe2O3/Gn (1:2) as the counter electrode, the device efficiency achieved 7.58%.
Second, we used titanium dioxide and tin dioxide nanocomposites as the working electrodes of dye-sensitized solar cells. The surface morphology, element composition, and absorbance of the nanocomposites were analyzed. The DSSCs were fabricated and the impedance spectrum, conversion efficiency, and external quantum efficiency of the devices were analyzed. The experimental results showed that when using the TiO2/SnO2 (3wt%) as the working electrode, the device efficiency achieved 7.76%, which was higher than that of the TiO2 working electrode (6.97%).
Third, we used graphene oxide/cobalt complexes nanocomposites as counter electrode materials for dye-sensitized solar cells. Cobalt complexes were used as a reducing agent to reduce graphene oxide to graphene, and as the catalytic center of the counter electrode. The surface morphology, element composition, and electrochemical characteristics of the nanocomposites were analyzed. The DSSCs were fabricated and the impedance spectrum, conversion efficiency, and external quantum efficiency of the devices were analyzed. The experimental results showed that when using the GO/Co (1:3) as the counter electrode, the device efficiency achieved 6.57%.

第一章 序論 1
第二章 金屬氧化物氧化鐵與二維材料石墨烯於染料敏化太陽能電池對電極之研究　　21
第三章 摻雜二氧化錫於染料敏化太陽能電池工作電極之研究　　　　　　　　　　　45
第四章 石墨烯／鈷金屬錯合物新穎複合材料於染料敏化太陽能電池對電極之研究　　67

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