Application of MnTiO3 nanoparticles as coating layer of high performance TiO2/MnTiO3 dye-sensitized solar cell

MnTiO3 nanoparticles as coating layer of dye-sensitized solar cell (DSSC) was prepared by sol–gel technique, using manganese acetate and tetrabutyl titanate as Mn and Ti sources and stearic acid as complexing agent. The TiO2/MnTiO3 DSSC was modified by coating a micrometer thick layer (10 μm) of MnTiO3 layer on the surface of TiO2. This modified electrode showed increase in the JSC that is attributed to the enhanced incident photon to current conversion efficiency response and the improvement in the VOC because of the increase of the electron lifetime on the TiO2/MnTiO3 interface.