Metal Oxides for Dye‐Sensitized Solar Cells

The incessant demand for energy forces us to seek it from sustainable resources; and concerns on environment demands that resources should be clean as well. Metal oxide semiconductors, which are stable and environment friendly materials, are used in photovoltaics either as photoelectrode in dye solar cells (DSCs) or to build metal oxide p – n junctions. Progress made in utilization of metal oxides for photoelectrode in DSC is reviewed in this article. Basic operational principle and factors that control the photoconversion efficiency of DSC are briefly outlined. The d ‐block binary metal oxides viz. TiO 2 , ZnO, and Nb 2 O 5 are the best candidates as photoelectrode due to the dissimilarity in orbitals…