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通过紫外光照射成功把金粒子沉积到二氧化钛纳米管的管壁中。通过扫描电镜、能谱和X射线衍射进行表征。沉积所得的金粒子为高度分散的纳米级粒子,并且金颗粒的粒径和密度可通过沉积时间控制。应用于染料敏化太阳电池中,由于金颗粒存在表面等离子增强效应,可提高电池的光电转换效率。然而随着沉积时间增长,沉积的金颗粒粒径会增大,所得电池的效率将会下降。
Gold particles were successfully deposited into the tube wall of the titania nanotube by UV irradiation. Characterization was performed by scanning electron microscopy, energy dispersive spectroscopy and X-ray diffraction. The deposited gold particles are highly dispersed nano-sized particles, and the particle size and density of the gold particles can be controlled by the deposition time. Applied to dye-sensitized solar cells, due to the existence of surface plasmon enhancement effect of gold particles, can improve the photoelectric conversion efficiency of the battery. However, as deposition time increases, the size of the deposited gold particles will increase and the resulting cell efficiency will decrease.