Mesoporous SnO2 Microspheres: Synthesis, Characterization, and Application in Enhanced Dye-sensitized Solar Cells and Lithium Batteries

This paper reports firstly on synthesis of mesoporous SnO₂ microspheres by a spray reaction process after calcination at 600-800°C. Using the mesoporous SnO₂ microspheres as anode scattering layer, dye-sensitized solar cells (DSSCs) are assembled with TiO₂ nanoparticles as the bottom layer. SnO2 microspheres layer significantly enhances light harvesting and energy conversion efficiencies of cells. A maximum conversion efficiency of 6.0% was obtained for this bilayered DSSCs.