- 學位論文
噴霧技術應用在染料敏化奈米太陽能電池製作研究
Development of Spraying Technique for Fabrication of the Dye-sensitized Nano Solar Cells
摘要
本論文主要針對噴霧技術應用於染料敏化奈米太陽能電池(DSSC)之光電極製程研究與其效率分析，利用噴霧塗佈法製作光電極，探討噴霧流量與噴霧距離等對光電極透光率之影響，及光電極透光率與~DSSC~之光電轉換效率的關係。本論文還對TiO2分散溶液溫度、添加金屬材料的多層膜光電極與在染料中添加碳黑作為觸媒造成DSSC之光電轉換效率的影響分析，並量測實驗室自製燒結爐的均溫性對DSSC的光電特性影響，獲得距離石英燈管6cm處，其均溫性和光電轉換效率最佳，本研究自行架設噴霧系統，以多次噴霧的方式製作DSSC光電極，欲取代傳統的塗佈方式，達到能塗佈較大範圍的表面積和大量且快速製作之目的。以噴霧塗佈製作光電極時，在約68%的透光率有最佳效率。TiO2分散溶液則以10度C的分散劑溫度所製作之DSSC光電極有最佳的光電轉換效率。在噴嘴流量與距離的控制上，當噴嘴流量越大和噴霧高度為20cm時，光電轉換效率最佳為0.166%。另外，以塗佈法製作多層膜光電極，其中(TiO2/TiO2)的光電極，光電轉換效率有上升的趨勢，在染料中添加碳黑作為觸媒，其光電轉換效率比無添加碳黑的染料增加約1.35倍。
並列摘要
This article mainly focuses on studying the spraying technique for fabricating the photoelectrode of dye-sensitized nano solar cells (DSSCs) and the photoelectric conversion efficiency analysis of DSSCs. Experimental discussed run conditions are transmittance of the sprayed photoelectrode influenced by flow rate and spraying distance as well as relationship between transmittance of photoelectrode and photoelectric conversion efficiency of DSSCs. This article also discusses photoelectric conversion efficiency of DSSCs influenced by temperature of nano TiO2 dispersion solution, multiple layer of photoelectrode with metal particles additives, and dye with catalyst of nano carbon black additives. Measurements of temperature distribution in the self made sintering store obtained a good distance of ~6~cm between heat source and substrate. The research developed spraying technique for quick and large area film coating on photoelectrode of DSSCs to replace traditional spreading methods. The results show that ca. 68% transmittance of photoelectrode, ca. 10°C temperature of nano TiO2 dispersion solution, larger spraying flow rate, and ca. 20cm spraying distance yielded the best 0.166% photoelectric conversion efficiency of DSSCs. Moreover, the pure nano TiO2 multiple layer received the best photoelectric conversion efficiency and dye with nano carbon black additives yielded ca.1.35 times increasement of photoelectric conversion efficiency.