可撓式染料敏化太陽能電池正電極材料製備研究

Preparation of flexible dye-sensitized solar cells anode electrode materials

杜鴻福(Hung-Fu Tu)

指導教授 ： 陳志恆

國立臺北科技大學/工程學院/資源工程研究所/碩士(2012年)

https://doi.org/10.6841/NTUT.2012.00184

摘要

隨著二十一世紀到來，由於能源的短缺，綠色能源技術已成為全球性的重要課題，其中又以太陽能技術為最具潛力的綠色能源技術。由於染料敏化太陽能電池(DSSC)的低成本和相對高的轉換效率，DSSC於現今被認為是一個很好的選擇，以替代傳統矽晶太陽能電池。使用可撓式透明導電塑膠基材ITO-PET取代導電玻璃可以使DSSC擁有更低廉的成本、更輕的重量、可彎曲的特性。由於PET塑膠基材不能使用高溫處理，因此必須使用低溫程序以製備正電極的TiO2層，此表面須具有多孔性以在敏化過程中吸附染料分子。此外，對於可撓性而言，在DSSC進行彎曲時需考慮到TiO2層必需要擁有良好的機械強度。本研究中提出使用乙二醇(EG)溶劑調配TiO2糊狀物塗佈於ITO-PET上經100℃低溫熱處理24小時後，可獲得機械特性良好黏附層。再以乙醇為溶劑Sol-Gel法於此基底上披覆一層TiO2糊狀物，再經100℃低溫熱處理1小時後，可在黏附層上形成多孔TiO2層。為了增加黏附層與多孔層兩層間的接附，再施加250N外力進行碾壓。所形成新複合層擁有1.034 KΩ低電阻、每克複合層正電極可吸附0.1353g水分的多孔性、可彎曲到150°層不崩落之機械強度的複合材料。

關鍵字

染料敏化太陽能電池 ； 可撓式 ； 複合材料

並列摘要

Due to the shortage of energy, green energy technology has become an important global issues, among which the solar energy technology has the most potential.The dye-sensitized solar cell (DSSC), which has the advantages of low-cost and relatively high conversion efficiency, is considered a good alternative for traditional silicon solar cells. Instead of conductive glass, DSSC with flexible transparent conductive ITO-PET plastic substrate have the characteristics of lower cost, lighter weight and flexible features. Nevertheless, the PET plastic substrates cannot be used in the high-temperature process for the preparation of anode electrode. A low-temperature process for the preparation of the porous TiO2 layer of the anode electrode is required. The porous surface should be able to be sensitized by the absorption of dye molecules. In addition, the TiO2 layer should have good mechanical properties for flexible DSSC can be realized. In this study, it was demonstrated that using TiO2 paste with ethylene glycol (EG) as the solvent can be coated onto the ITO-PET substrate. An adhesion layer with good mechanical properties can be achieved by low-temperature heat treatment at 100 ℃ for 24 hours. Then, a porous TiO2 layer can be coated onto the adhesion layer by sol-gel method conducted at 100 ℃ for 1 hour. In order to increase the mechanic strength between adhesion layer and porous layer, a 250 N force was applied to press the surface layer. The new composite layer has low 1.034 KΩ resistance. The porous composite layer can adsorbed 0.1353g of water per gram of anode electrode. The bending angle can achieved 150o without the dislodgment of the porous layer.

並列關鍵字

Dye-sensitized solar cells ； Flexible ； Composite Materials

參考文獻

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