title: Photoelectrochemical study of oxygen deficient TiO2 nanowire arrays with CdS quantum dot sensitization.
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.
authors.affiliation: Department of Chemistry and Biochemistry, University of California, Santa Cruz, California 95064, USA.
authors.forename: Hanyu
authors.initials: H
authors.lastname: Wang
authors.forename: Gongming
authors.initials: G
authors.lastname: Wang
authors.forename: Yichuan
authors.initials: Y
authors.lastname: Ling
authors.forename: Marion
authors.initials: M
authors.lastname: Lepert
authors.forename: Changchun
authors.initials: C
authors.lastname: Wang
authors.forename: Jin Z
authors.initials: JZ
authors.lastname: Zhang
authors.forename: Yat
authors.initials: Y
authors.lastname: Li
mesh_terms: D000641:Ammonia / Q000737:chemistry; D019187:Cadmium Compounds / Q000737:chemistry*; D004566:Electrodes; D006859:Hydrogen / Q000737:chemistry; D053770:Nanowires / Q000737:chemistry*; D010100:Oxygen / Q000737:chemistry*; D045663:Quantum Dots; D013440:Sulfides / Q000737:chemistry*; D014025:Titanium / Q000737:chemistry*; D014466:Ultraviolet Rays; D014618:Vacuum
chemical_list: D019187:Cadmium Compounds; D013440:Sulfides; C034939:cadmium sulfide; C009495:titanium dioxide; D000641:Ammonia; D006859:Hydrogen; D014025:Titanium; D010100:Oxygen