CdHgTe Quantum Dots Sensitized Solar Cell with Using of Titanium Dioxide Nanotubes

M. Y. Feteha, M. Ameen

Department of Materials Science, Institute of Graduate Studies and Research, Alexandria University, Alexandria, Egypt..

DOI: 10.4236/jpee.2013.15011                

Abstract

The sensitization of TiO₂ nanotubes with CdHgTe quantum dots (QDs) was applied by using the direct dispersion technique. The CdHgTe-QDs were fabricated with different Hg% ratio in organic medium for controlling their particle size. While TiO₂ nanotubes (NTs) were fabricated by anodization technique. The QDs and NTs were characterized using SEM, TEM and UV-VIS spectrophotometer. In this work, the photovoltaic parameters of the quantum dots sensitized solar cell (QDSSC) depend mainly on the Hg% ratio in the QDs. The most efficient QDSSC was obtained at 25% of Hg ratio with J_sc of 4 mA/cm², V_oc of 0.63 V, FF of 0.32 and efficiency of 0.81%.

Keywords

Solar Cells; Quantum Dots; Nano-Tubes; TiO2; Sensitization

Conflicts of Interest

The authors declare no conflicts of interest.

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