Nano Archive

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

Alivov, Yahya and Xuan, Pan and Fan, Z. Y. (2011) TiO2 nanotube height effect on the efficiency of dye-sensitized solar cells. Journal of Nanoparticle Research, 13 (12). pp. 7159-7165.

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Abstract

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.

Item Type:Article
ID Code:11410
Deposited By:Prof. Alexey Ivanov
Deposited On:05 Jan 2012 09:29
Last Modified:05 Jan 2012 09:42

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