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Materials 2014, 7(5), 3522-3532; doi:10.3390/ma7053522
Article

Characteristics of the Dye-Sensitized Solar Cells Using TiO2 Nanotubes Treated with TiCl4

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Received: 27 January 2014; in revised form: 24 April 2014 / Accepted: 29 April 2014 / Published: 5 May 2014
(This article belongs to the Special Issue New Energy Materials)
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Abstract: The replacement of oxide semiconducting TiO2 nano particles with one dimensional TiO2 nanotubes (TNTs) has been used for improving the electron transport in the dye-sensitized solar cells (DSSCs). Although use of one dimensional structure provides the enhanced photoelectrical performance, it tends to reduce the adsorption of dye on the TiO2 surface due to decrease of surface area. To overcome this problem, we investigate the effects of TiCl4 treatment on DSSCs which were constructed with composite films made of TiO2 nanoparticles and TNTs. To find optimum condition of TNTs concentration in TiO2 composites film, series of DSSCs with different TNTs concentration were made. In this optimum condition (DSSCs with 10 wt% of TNT), the effects of post treatment are compared for different TiCl4 concentrations. The results show that the DSSCs using a TiCl4 (90 mM) post treatment shows a maximum conversion efficiency of 7.83% due to effective electron transport and enhanced adsorption of dye on TiO2 surface.
Keywords: TiO2 nanoparticle; anodic oxidation; TiO2 nanotube; TiCl4; dye-sensitized solar cells TiO2 nanoparticle; anodic oxidation; TiO2 nanotube; TiCl4; dye-sensitized solar cells
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Yang, J.H.; Bark, C.W.; Kim, K.H.; Choi, H.W. Characteristics of the Dye-Sensitized Solar Cells Using TiO2 Nanotubes Treated with TiCl4. Materials 2014, 7, 3522-3532.

AMA Style

Yang JH, Bark CW, Kim KH, Choi HW. Characteristics of the Dye-Sensitized Solar Cells Using TiO2 Nanotubes Treated with TiCl4. Materials. 2014; 7(5):3522-3532.

Chicago/Turabian Style

Yang, Jun H.; Bark, Chung W.; Kim, Kyung H.; Choi, Hyung W. 2014. "Characteristics of the Dye-Sensitized Solar Cells Using TiO2 Nanotubes Treated with TiCl4." Materials 7, no. 5: 3522-3532.


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