复合纳米结构二氧化钛的合成及其在染料敏化太阳能电池中的应用
首发时间:2011-05-23
摘要:相比于普通二氧化钛纳米颗粒,一维纳米结构二氧化钛更有利于电子的快速传输。本文通过一步水热法合成了具有纳米粒子-纳米棒复合结构的纳米二氧化钛,采用扫描电镜(SEM),X射线衍射(XRD)对其形貌、形成机理及物相结构进行了分析。将该复合结构二氧化钛与商业化二氧化钛-P25均作为光阳极材料来制备染料敏化太阳能电池,对其光电性能进行了对比研究。结果表明,复合结构二氧化钛由于具有较快的电子传输速度等优势而获得比P25较高的短路电流密度和光电转换效率。
关键词: 二氧化钛 染料敏化太阳能电池 复合纳米结构 电子传输
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Synthesis of composite nanostructure titania and its application in dye-sensitized solar cells
Abstract:Compared with the common titania nanoparticles, one dimension nanostructure titania is beneficial for fast electron transport. In this paper, composite nanostructure titania with nanoparticles and nanorods is synthesized by one step hydrothermal treatment. Scanning electron microscopy (SEM) and X-ray diffraction (XRD) are used to study the morphology, formation mechanism, and phase structure. This kind of composite nanostructure titania and the commercial titania-P25 are both used as the anode material to fabricate dye-sensitized solar cells (DSSCs). And their photoelectric performance are investigated. The result shows that the composite nanostructure titania based DSSCs get a higher short circuit current density and photoelectric conversion ef?ciency than P25-based DSSCs, due to its faster electron transport.
Keywords: Titania Dye-sensitized solar cells Composite nanostructure Electron transport
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