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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.

SUBMITTER: Liu YH

PROVIDER: S-EPMC3508702 | biostudies-literature | 2012 Nov

REPOSITORIES: biostudies-literature

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Bright core-shell semiconductor quantum wires.

Liu Yi-Hsin YH Wang Fudong F Hoy Jessica J Wayman Virginia L VL Steinberg Lindsey K LK Loomis Richard A RA Buhro William E WE

Journal of the American Chemical Society 20121102 45

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 photoluminesc ...[more]

PMID: 23095017

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