title: Bright core-shell semiconductor quantum wires.
abstract: Colloidal CdTe quantum wires are reported having ensemble photoluminescence efficiencies as high as 25% under low excitation-power densities. High photoluminescence efficiencies are achieved by formation of a monolayer CdS shell on the CdTe quantum wires. Like other semiconductor nanowires, the CdTe quantum wires may contain frequent wurtzite-zinc-blende structural alternations along their lengths. The present results demonstrate that the optical properties, emission-peak shape and photoluminescence efficiencies, are independent of the presence or absence of such structural alternations.
authors.affiliation: Department of Chemistry,  Washington University , Saint Louis, Missouri 63130-4899, United States.
authors.forename: Yi-Hsin
authors.initials: YH
authors.lastname: Liu
authors.forename: Fudong
authors.initials: F
authors.lastname: Wang
authors.forename: Jessica
authors.initials: J
authors.lastname: Hoy
authors.forename: Virginia L
authors.initials: VL
authors.lastname: Wayman
authors.forename: Lindsey K
authors.initials: LK
authors.lastname: Steinberg
authors.forename: Richard A
authors.initials: RA
authors.lastname: Loomis
authors.forename: William E
authors.initials: WE
authors.lastname: Buhro
mesh_terms: D019187:Cadmium Compounds / Q000737:chemistry*; D003102:Colloids / Q000737:chemistry; D045663:Quantum Dots; D012666:Semiconductors; D013440:Sulfides / Q000737:chemistry; D013691:Tellurium / Q000737:chemistry*
chemical_list: D019187:Cadmium Compounds; D003102:Colloids; D013440:Sulfides; C034939:cadmium sulfide; D013691:Tellurium; C028337:cadmium telluride