TiO2 nanotube height effect on the efficiency of dye-sensitized solar cells

被引：0
作者：
Yahya Alivov
Pan Xuan
Z. Y. Fan
机构：
[1] Texas Tech University,Nano Tech Center and Department of Electrical and Computer Engineering
[2] University of California at Irvine,undefined
来源：
Journal of Nanoparticle Research | 2011年 / 13卷
关键词：
Titanium dioxide; Nanotubes; Nanoparticles; Dye-sensitized solar cells; Energy conversion;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Performance of dye-sensitized solar cells (DSSCs) based on TiO2 nanotubes (NTs) filled with TiO2 nanoparticles (NPs) was studied as a function of NT height (h). The NT height was varied in the range of 1.5–7.0 μm, while the NT diameter was kept constant at ~80 nm. The studies showed that DSSC efficiency, current density, and fill factor linearly increased with h and ranged in 1.76–6.5%, 3.62–13.2 mA/cm2, and 0.66–0.76, respectively, within the h range studied. The electrochemical impedance spectroscopy was also performed to study DSSC electron transport properties. Based on both photovoltaic and electrochemical impedance spectroscopy data, the results were explained as being due to the increased dye loading that led to higher light-harvesting efficiency.
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页码：7159 / 7165
页数：6
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