白金/石墨烯奈米複合薄膜在染料敏化太陽能電池應用之探討

Preparation of Platinum/Graphene Counter Electrodes for Dye-sensitized Solar Cells

黃尹柔(Yin-Rou Huang) ； 賴彥州(Yan-Chou Lai) ； 張智凱(Chin-Kai Chang) ； 蔡毓楨(Yu-Chen Tsai)

《界面科學會誌》 31卷1~4期 (2009/08) Pp. 10-16

https://doi.org/10.30020/JCCIS.200908.0002

摘要

本研究將白金鹽類與石墨烯氧化物（Graphene oxide, GO）共還原，藉由化學還原法將白金（Pt）還原於石墨烯（Reduced graphene oxide, RGO）表面上，形成白金/石墨烯（Pt/RGO）奈米複合薄膜，作為染料敏化太陽能電池對電極材料。利用穿透式電子顯微鏡（Transmission electron microscope）觀察Pt/RGO複合薄膜微觀的表面形貌、白金的分散情形及白金粒子顆粒大小，並使用X光能量散譜儀（X-ray energy dispersive spectrometer）作元素分析，證明白金粒子確實還原於石墨烯載體上，再將Pt/RGO複合薄膜作為對電極組裝成染料敏化太陽能電池元件，量測其光電轉換效率。

關鍵字

染料敏化太陽能電池 ； 對電極 ； 白金 ； 石墨烯

並列摘要

In this study, platinum nanoparticles were deposited on graphene by chemical reduction method. The Pt/RGO nanocomposite was used as counter electrodes for dye-sensitized solar cells (DSSCs). The prepared Pt/RGO nanocomposite were characterized by transmission electron microscopy (TEM) and energy dispersive X-ray spectroscopy (EDS). TEM images demonstrated the dispersion of Pt nanoparticles on graphene. EDS results confirmed the formation of nanoparticle on graphene. The power conversion efficiency for Pt/RGO-0.25 is better than those of Pt/RGO and Pt/RGO-5.

並列關鍵字

Dye-sensitized solar cells ； Counter electrode ； Platinum ； Graphene