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Spherical multihollow (MH) TiO 2 nanostructures have been synthesized via a microemulsion-based approach with titanium glycerolate complexes formation at glycerol microemulsions interface. The self-aggregation of those microemulsions induces the formation of MH TiO 2 nanospheres. Owing to this hierarchical hollow structure, photoanode films derived from MH TiO 2 nanosphere as light scattering layer exhibits an enhanced light harvesting efficiency, thus leading to a 43% increment of photovoltaic performance compared to that from P25 nanoparticle film.
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Jiang et al. (2012) studied this question.
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