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Photoelectrochemical study of oxygen deficient TiO2 nanowire arrays with CdS quantum dot sensitization
Hanyu Wang1, Gongming Wang, Yichuan Ling
1Department of Chemistry and Biochemistry, University of California, Santa Cruz, California 95064, USA.
Nanoscale
|January 28, 2012
Abstract:
Oxygen-deficient TiO(2) nanowires show substantially increased donor density due to an increase in oxygen vacancies introduced intentionally by thermal treatment in ammonia, vacuum, or hydrogen. By coupling oxygen-deficient TiO(2) nanowires with CdS quantum dots, a significant enhancement in their photoactivities was observed in the entire wavelength region from 350 to 550 nm. These new nanocomposites hold great promise for solar hydrogen generation.
