Behaviors of different dispersers on morphologies of porous TiO2 films |
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| Authors: | Ding REN Yu ZOU Chang-Yong ZHAN Ning-Kang HUANG |
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| Affiliation: | Key Laboratory of Radiation Physics and Technology (Ministry of Education), Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, China |
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| Abstract: | TiO2 films with nanoparticles dispersed by using three different additives such as acetylacetone, Emulsifier OP-10, and polyethylene glycol, respectively. It is found that for the TiO2 films produced with appropriate amount of Emulsifier OP-10, there are no reaggregation of TiO2 nanoparticles with pores of about 5–20 nm. By adding polyethylene glycol, the pore size of the TiO2 films could be in the range from about 50 to 200 nm. However, by using acetylacetone, aggregations of TiO2 nanoparticles always exist in the TiO2 films. The related mechanism on the aggregation of nanoparticles in the TiO2 slurries is discussed. |
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| Keywords: | dye-sensitized solar cell (DSSC) porous TiO2 films disperser morphology |
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