Influence of structural deformation on dye-sensitized solar cells with anodically fabricated self-organized TiO2 nanotubes

Seog Joon Yoon; Misun Lee; Eun-Kyung Kim; Wonjoo Lee; Yoon-Chae Nah; Nabeen K. Shrestha; Soo-Hyoung Lee; Sung-Hwan Han

doi:10.1039/C1NJ20348G

Influence of structural deformation on dye-sensitized solar cells with anodically fabricated self-organized TiO₂nanotubes

Seog Joon Yoon,^a Misun Lee,^a Eun-Kyung Kim,^a Wonjoo Lee,^a Yoon-Chae Nah,^b Nabeen K. Shrestha,*^ac Soo-Hyoung Lee^d and Sung-Hwan Han*^a

Author affiliations

* Corresponding authors

^a Department of Chemistry, Hanyang University, Seoul 133-791, Republic of Korea
E-mail: shhan@hanyang.ac.kr
Fax: +82 2 2299 0762
Tel: +82 2 2292 5212

^b School of Energy Materials Chemical Engineering, Korea University of Technology and Education, Cheonan 330-708, Republic of Korea

^c Nepal Academy of Science & Technology, G.P.O. Box: 3323, Khumaltar, Lalitpur, Nepal
E-mail: nabeenkshrestha@hotmail.com

^d School of Semiconductor and Chemical Engineering, Chonbuk National University, Jeonju, Korea

Abstract

In the present study, various lengths of self-organized TiO₂ nanotubes (TNTs) with and without structural disorder were grown on a Ti-sheet by anodization of the sheet, and their photovoltaic performance was investigated by using them as photo-anodes in dye-sensitized solar cells (DSSCs). The common structural disorders of the nanotubes which are often encountered in TNTs based DSSCs and their influence on photovoltaic performance was investigated using scanning electron microscopy (SEM), X-ray diffraction and electrochemical impedance spectroscopy (EIS). SEM and EIS investigation showed that TiO₂ nanotube arrays attached firmly and aligned perpendicularly without any structural disorder to the Ti-substrate could significantly improve the performance of DSSCs.

Article information

https://doi.org/10.1039/C1NJ20348G

Article type

Paper

Submitted

19 Apr 2011

Accepted

20 Jul 2011

First published

15 Aug 2011

Download Citation

New J. Chem., 2011,35, 2521-2526

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Influence of structural deformation on dye-sensitized solar cells with anodically fabricated self-organized TiO₂ nanotubes

S. J. Yoon, M. Lee, E. Kim, W. Lee, Y. Nah, N. K. Shrestha, S. Lee and S. Han, New J. Chem., 2011, 35, 2521 DOI: 10.1039/C1NJ20348G

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