期刊
SOLAR ENERGY MATERIALS AND SOLAR CELLS
卷 92, 期 5, 页码 537-542出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.solmat.2007.11.009
关键词
TiO2 inverse opals; dye-sensitized solar cell; self-assembling; Raman scattering; hydrophobic attraction forces
The difficulty to infiltrate solid-state hole semiconductors within micron-thick porous titania films is one of the major limiting factors for the achievement of efficient solid-state dye-sensitized solar cells. It was already shown that through the ordered interconnected pores of an inverse opal, the large surface area of several microns thick titania film can be easily decorated with a dye and filled with a solid-state hole semiconductor. In this paper, we show that ordered inverse opal mesoporous thick films of TiO2 with these characteristics can be obtained by using a slurry of monodispersed polystyrene spheres and a titania-lactate precursor deposited by the doctor blade technique. The mechanism of formation of the inverse opal is also discussed. (c) 2007 Elsevier B.V. All rights reserved.
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