title: Visible-light-driven, tunable, photoelectrochemical performance of a series of metal-chelate, dye-organized, crystalline, CdS nanoclusters.
abstract: CdS nanoclusters of four different sizes were integrated with ruthenium-complex dyes. The cluster-dye crystalline composites, [Cd(4)(SPh)(10)][Ru(bpy)(3)], [Cd(8)S(SPh)(16)][Ru(bpy)(3)], [Cd(8)S(SPh)(13) ⋅Cl⋅(CH(3)OCS(2))(2)][Ru(phen)(3)], [Cd(17)S(4)(SPh)(28)][Ru(bpy)(3)], and [Cd(32)S(14)(SPh)(40)][Ru(phen)(3)](2) (phen=1,10-phenanthroline and bpy=bipyridine), show intense absorption in the visible-light region. They also exhibit size-dependent photocurrent responses under the illumination of visible light. The photocurrent increases with increased cluster size. The dyes also have significant influence on the photocurrent generation of the composite.
authors.affiliation: Department of Chemistry, University of California, 900 University Avenue, Riverside, California 92521 (USA), Fax: (+1) 951-827-4713; Current address for Dr. Y. Liu, Department of Chemistry, Tsinghua University, Beijing, 100084.
authors.forename: Yang
authors.initials: Y
authors.lastname: Liu
authors.forename: Qipu
authors.initials: Q
authors.lastname: Lin
authors.forename: Qichun
authors.initials: Q
authors.lastname: Zhang
authors.forename: Xianhui
authors.initials: X
authors.lastname: Bu
authors.forename: Pingyun
authors.initials: P
authors.lastname: Feng
keywords: CdS nanoclusters; photochemistry; ruthenium; semiconductors; solar cells