Synthesis and spectroscopic studies of chiral CdSe quantum dots

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Title: Synthesis and spectroscopic studies of chiral CdSe quantum dots
Authors: Gallagher, Shane A.
Moloney, Mícheál P.
Wojdyla, Michal
Quinn, Susan J.
Kelly, John M.
Gun'ko, Yurii K.
Permanent link: http://hdl.handle.net/10197/4296
Date: Aug-2010
Online since: 2013-04-30T11:16:22Z
Abstract: Using microwave irradiation, water soluble, optically active, penicillamine (Pen) capped CdSe nanocrystals with broad spectral distribution (430-780 nm) of photoluminescence have been produced and studied by a range of instrumental techniques including absorption, circular dichroism and both steady state and time resolved photoluminescence spectroscopy. The photoluminescence of these nanocrystals is attributed to emission from surface defect states. The decay of the excited state in the nanosecond region, which can be analysed as a triple exponential, depends strongly on the emission wavelength selected, but only weakly on the excitation wavelength.
Type of material: Journal Article
Publisher: RSC Publishing
Journal: Journal of Materials Chemistry
Volume: 20
Issue: 38
Start page: 8350
End page: 8355
Copyright (published version): 2010, Royal Society of Chemistry
Keywords: SpectroscopyChiralCdSeQuantum dots
DOI: 10.1039/C0JM01185A
Language: en
Status of Item: Not peer reviewed
Appears in Collections:Chemistry Research Collection

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