Rapid Microwave Synthesis of Porous TiO2 Spheres and Their Applications in Dye-Sensitized Solar Cells
The Journal of Physical Chemistry C2011Vol. 115(21), pp. 10419–10425
Citations Over TimeTop 10% of 2011 papers
Hong‐En Wang, Lingxia Zheng, Chao Ping Liu, Yan-Kuan Liu, Chunyan Luan, Hua Cheng, Yang Yang Li, L. Martinů, Juan Antonio Zapien, Igor Bello
Abstract
Porous anatase TiO2 spheres with sizes ranging from 150 to 250 nm were synthesized by a rapid microwave treatment of spherical titanium glycolate precursors preformed via an ethylene glycol-mediated sol–gel process. The effects of various experimental conditions on the formation of titanium glycolate precursors and final TiO2 spheres were investigated. A dye-sensitized solar cell (DSSC) assembled with the as-synthesized porous TiO2 spheres as photoanodes exhibits a 5% energy conversion efficiency, which is almost 40% higher than that made of the standard commercial Degussa P25 TiO2 nanopowders.
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