官能化石墨烯與PEDOT-PSS複合薄膜製備應用於染料敏化太陽能電池

本研究當中我們對電池的對電極部分進行改良。大多數的染料敏化太陽能電池的對電極是使用鉑，但因為鉑的成本滿高，所以希望使用成本較低的導電高分子當作對電極的材料，然而因PEDOT-PSS導電高分子的氧化還原效果不好，所以在這邊添加了石墨烯，因為石墨烯具有良好的氧化還原能力且導電性也很高，以便增加其效率。我們希望可以利用簡單的製程可以出做出適合大面積工業化製造的染料敏化太陽能電池。基材方面除了使用ITO玻璃，這次也使用可繞式元件(ITO-PET)當作基材。將完成的染料敏化太陽能電池使用了X光繞射分析儀、掃描式電子顯微鏡、能量散步分析儀、紫外光-可見光吸收光譜分析儀去鑑定薄膜的光學、化學性質、薄膜表面，接著將電池與不同比例的石墨烯對電極封裝，使用模擬太陽光系統、交流阻抗測詴，得到電池的光電轉換效率及電阻。最後測詴在ITO玻璃方面，以添加0.1g 石墨烯的光電轉換效率最佳，為3.78%，然而在可繞式元件方面，以添加了0.5g 石墨烯的光電轉換效率最佳，為0.3552%。在可繞式元件上面的效率還頇有待加強。

關鍵字

染料敏化太陽能電池；石墨烯； PEDOT-PSS ；可繞式；對電極

並列摘要

In this study we improve the DSSC of battery. There are many dye-sensitized solar cells using platinum as counter electrode. But the platinum is too expensive that we hope to use the low cost conducting polymer as counter electrode materials. Because the PEDOT-PSS of conductive polymer that oxidation reduction is bad, we add grapheme which not only has a good oxidation-reduction ability but also the conductivity is high. We use the simple process to manufacture the dye-sensitized solar cells which are able to use in large-scale industrial manufacturing. Matrix includes ITO glass as well as flexible element(ITO-PET). we use X-ray Diffraction, Scanning Electron Microscopy, Energy Dispersive Spectrometer, UV–visible to identify the property of optical, chemistry, film surface as we manufacture dye-sensitized solar cell.Batteries with different ratios of the graphene on the electrode package use the system of simulated sunlight, EIS, to get photoelectric conversion efficiency and the resistor of the cell. The ITO glass which is added 0.1g ofgrapheme has the best efficiency , and the photoelectric conversion efficiency is 3.78%. Regarding the flexible element, the one with 0.5g of grapheme has the best efficiency, the photoelectric conversion efficiency is 0.3552%. Efficiency in flexible element above to be strengthened.

並列關鍵字

Dye-sensitized solar cell ； Graphene ； PEDOT-PSS ； Flexible ； counter-electorode

參考文獻

【23】洪偉修教授,世界上最薄的材料--石墨烯,台北,康熹文化事業股份有限公司,2009-11.

【24】 Nobel Foundation announcement

【1】 Tsubomura, H., Matsumura, M., Nomura, Y., Amamiya, T. " Dye sensitised Zinc oxide: Aqueous electrolyte: Platinum photocell, " Nature,no.261,1976, pp.402-403.

【2】 O'Regan, B., Grätzel, M., "A low-cost, high-efficiency solar cell based on dye-sensitized colloidal TiO2 films, " Nature,no.353,1991,pp.737-740..

【3】 Nazeeruddin, M.K., Kay, A., Rodicio, I., Humphry-Baker, R., Müller, E., Liska, P., Vlachopoulos, N., Grätzel, M.,"Conversion of light to electricity by cis-X 2bis(2,2′-bipyridyl-4,4′-dicarboxylate)ruthenium(II) charge-transfer sensitizers (X = Cl -, Br -, I -, CN -, and SCN -) on nanocrystalline TiO 2 electrodes, "Journal of the American Chemical Society,no.115,pp.6382-6390.

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官能化石墨烯與PEDOT-PSS複合薄膜製備應用於染料敏化太陽能電池

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