Probing Single Quantum Dots by Micro-photoluminescence

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

Document Type: Communications

DOI: http://dx.doi.org/10.1166/jnn.2001.047

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

Publication date: September 1, 2001

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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