Quantum dots-sensitized solar cell (QDSSC) is one of the third generation solar cell that is
the most promising low cost, easy to manufacture and highly efficient solar cell. Compared to Dyesensitized
solar cell (DSSC), quantum dots (QDs) of QDSSC has a narrow bandgap and possess
excellent properties such as tunable band gaps, strong light absorption and high multiple electron
generation. Titanium dioxide or titania (TiO2) is an oxides semiconductor material that is frequently
used as a photoanode in this photovoltaic system due to high stability under visible light illumination.
TiO2 is also known as a good photocatalyst and an excellent choice in environmental purification. The
efficiencies of electron injection and light harvesting in QDSSC are affected by the nature, size
morphology, and quantity of this nanomaterial. In this review, the concept and principles of the
QDSSCs are reviewed. The preparation and fabrication method ofTiO2 electrode in QDSSC are also
discussed. It is worthwhile to know the architecture of TiO2 in order to enhance the efficiency of
QDSSC.