以銨鹽為添加劑改質二氧化鈦奈米漿料並應用於染料敏化太陽能電池

The Modification of TiO2 Nanopaste by Ammonium Salts for Application of Dye-sensitized Solar Cells

白善尹(Shan-yin Pai)

指導教授 ： 蘇昭瑾

國立臺北科技大學/工程學院/有機高分子研究所/碩士(2013年)

https://doi.org/10.6841/NTUT.2013.00565

摘要

染料敏化太陽能電池（DSSCs）具備低成本、可彎曲、不需精密昂貴製程等優點，近年來成為許多學者研究的焦點，其中多孔性二氧化鈦薄膜作為電池之光陽極對DSSCs的效率表現為一項重要參數。本研究利用銨鹽於高溫可裂解成氣體的特性，分別以碳酸銨、碳酸氫銨、四乙基銨碳酸氫鹽、醋酸銨、六氟磷酸銨五種銨鹽改質二氧化鈦奈米漿料，並探討以銨鹽改質的漿料煅燒成薄膜後對DSSCs效率的影響。研究結果發現當碳酸銨添加濃度分別為0、3、5、7、9 wt%時，以7 wt%的效果最好，其DSSCs的效率表現約提升整體效率的8 %。接著以相同濃度（7 wt%）分別添加碳酸氫銨、醋酸銨、四乙基銨碳酸氫鹽、六氟磷酸銨後發現，其對於DSSCs效率的影響皆不如碳酸銨。

關鍵字

染料敏化太陽能電池 ； 二氧化鈦漿料 ； 銨鹽

並列摘要

Dye Sensitized Solar Cells (DSSCs) have attracted tremendous interest due to the possibilities of low cost, simple fabrication steps, and flexibility. TheTiO2 thin film photoanode is one of the important components affecting the performance of DSSCs. In this thesis, the modification of TiO2 nanopastes employing a series of ammonium salts such as ammonium carbonate, ammonium bicarbonate, tetraethyl ammonium bicarbonate, ammonium acetate, and ammonium hexaflurophosphate were performed. The influences of various ammonium salts on the TiO2 nanopastes as well as their application in DSSCs were studied. It was found that the utilization of ammonium carbonate shows the enhanced DSSC performance compared to those without modification. The concentration of addition of ammonium carbonate was varied as 0, 3, 5, 7 and 9 wt %, in which, the 7 wt % ammonium carbonate based TiO2 photoelectrode achieved the optimal overall photoconversion efficiency of~8%.

並列關鍵字

Dye-sensitized solar cells ； TiO2 paste ； Ammonium salt

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