High efficiency monobasal solid-state dye-sensitized solar cell with mesoporous TiO₂ beads as photoanode

Abstract

A monobasal solid-state dye-sensitized solar cell (ssDSC) with mesoporous TiO₂ beads was developed and an efficiency of 4% was achieved under air mass (AM) 1.5 illumination. Scattering properties and electron diffusion coefficients of TiO₂ mesoporous beads and P25 nano-particles were investigated. The results show that TiO₂ mesoporous beads display higher scatterance than P25 nano-particles, and TiO₂ mesoporous beads have higher electron diffusion coefficients (2.86 × 10^-5 cm²∙s^-1) than P25 nano-particles (2.26 × 10^-5 cm²∙s^-1).

Keywords

dye-sensitized solar cells (DSCs) / mesoporous beads / scattering / electron diffusion coefficients

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Acknowledegments

The authors acknowledge the financial support by Nature Science Foundation of Hubei Province (2008CDA042) and Wuhan National Laboratory for Optoelectronics (WNLO). We thank Analytical and Testing Center of Huazhong University of Science and Technology (HUST) for field emission scanning electron microscopy (FESEM) testing.

RIGHTS & PERMISSIONS

2014 Higher Education Press and Springer-Verlag Berlin Heidelberg