Hydrothermal synthesis of ordered single-crystalline rutile TiO2 nanorod arrays on different substrates

Hong-En Wang; Zhenhua Chen; Yu Hang Leung; Chunyan Luan; Chaoping Liu; Yongbing Tang; Ce Yan; Wenjun Zhang; Zapien, Juan Antonio; Bello, Igor; Shuit-Tong Lee
June 2010
Applied Physics Letters;6/28/2010, Vol. 96 Issue 26, p263104
Academic Journal
We report the mild hydrothermal synthesis of single-crystalline rutile TiO2 nanorod arrays (NRAs). The method reported here shows great versatility and can be used to grow TiO2 NRAs on a large diversity of substrates including Si, Si/SiO2, sapphire, Si pillars, and fluorine doped tin oxide (FTO)-covered glass. The average diameter and length of the nanorods prepared at typical conditions are ∼60 nm and 400 nm, respectively. Dye-sensitized solar cells assembled with the TiO2 NRAs grown on the FTO-covered glass as photoanode were prepared with a photoconversion efficiency of ∼1.10%.


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