Probing Single Quantum Dots by Micro-photoluminescence

Authors: Zhang, B.P.1; Manh, L.H.1; Segawa, Y.1

Source: Journal of Nanoscience and Nanotechnology, Volume 1, Number 3, September 2001 , pp. 263-265(3)

Publisher: American Scientific Publishers

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Abstract:

Using micro-photoluminescence, emissions from single CdSe quantum dots were observed from the cleaved (110) facets of ZnSe/CdSe/ZnSe heterostructures grown on GaAs (001) substrates. The emission intensity of a single quantum dot was linearly proportional to the excitation intensity, demonstrating excitonic features. Emissions from these single quantum dots were found to polarize within the (001) plane, providing information on the shapes of the quantum dots.

Keywords: SINGLE CDSE QUANTUM DOTS; MICRO-PHOTOLUMINESCENCE; ZNSE/CDSE/ZNSE HETEROSTRUCTURES; MOLECULAR BEAM EPITAXY

Document Type: Communications

DOI: 10.1166/jnn.2001.047

Affiliations: 1: Photodynamics Research Center, The Institute of Physical and Chemical Research (RIKEN), 519-1399 Aoba, Aramaki, Aoba-ku, Sendai 980-0845, Japan

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