| Abstract
| - A strategy is shown to fabricate highly organized mesoporous anatase films exhibitingfavorable properties for photocatalysis and photovoltaic applications by the hydrolysis/condensation of TiCl4 in the presence of PHB−PEO block copolymer templates. Dipcoatingfor evaporation-induced-self-assembly followed by a straight thermal treatment wasemployed. The evaporation/structuration process and the thermal treatment were mechanistically followed by in situ GISAXS/WAXS measurements, and the final product wascarefully analyzed by spectroscopic ellipsometry and transmission electron microscopy toreveal the consequences of crystallization onto the micro-, the meso-, and the macroscale.
- Mesoporous TiO2 coatings were fabricated by evaporation-induced self-assembly, using a new block copolymer. Compared to previous surfactants, this template leads to significantly larger mesopore sizes of ca. 10 nm with crystalline pore walls. The mesostructure formation and crystallization were studied by in situ GISAXS, XRD, and HRTEM.
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