Studies on the Effects of Crystallite Sizes and Scattering Layers on the Conversion Efficiency of Dye-Sensitized Solar Cell

Meng-Suan Liang, Yoke-Khey Fong, Chwin-Chieh Khaw, Chin-Chin Liu, Sheue-Pin Chin

Universiti Tunku Abdul Rahman, Kuala Lumpur, Malaysia.

DOI: 10.4236/jpee.2014.212004                

Abstract

We have carried out the characterization of dye-sensitized solar cell (DSSC) using various techniques including current-voltage characteristic measurements, scanning electron microscopy (SEM), atomic force microscopy (AFM), UV-visible spectrophotometry, energy dispersive X-ray (EDX) spectroscopy and X-ray Diffraction (XRD), etc. The result we obtained from our work has clearly shown that dye adsorption capability of the DSSC is affected by the film thickness. The EDX spectroscopy verified that our samples are generally of good quality without significant inclusion of foreign elements. The XRD pattern demonstrated that all the TiO₂ active layers are consisting of anatase phase. Our results also showed that smaller crystallite sizes of the TiO₂ and inclusion of a scattering layer produce better efficiency for the DSSC.

Keywords

TiO₂, Conversion Efficiency, Crystallite, Scattering

Conflicts of Interest

The authors declare no conflicts of interest.

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