Functionalization of SnO<sub>2</sub> Photoanode through
Mg-Doping and TiO<sub>2</sub>‑Coating to Synergically Boost
Dye-Sensitized Solar Cell Performance
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Abstract
Mg-doped SnO<sub>2</sub> with an ultrathin TiO<sub>2</sub> coating
layer was successfully synthesized through a facile nanoengineering
art. Mg-doping and TiO<sub>2</sub>-coating constructed functionally
multi-interfaced SnO<sub>2</sub> photoanode for blocking charge recombination
and enhancing charge transfer in dye-sensitized solar cells (DSC).
The designed nanostructure might play a synergistic effect on the
reducing recombination and prolonging the lifetime in DSC device.
Consequently, a maximum power conversion efficiency of 4.15% was obtained
for solar cells fabricated with the SnO<sub>2</sub>-based photoelectrode,
exhibiting beyond 5-fold improvement in comparison with pure SnO<sub>2</sub> nanomterials photoelectrode DSC (0.85%)
