Synthesis and spectroscopic studies of chiral CdSequantum dots
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2010Citation:
Shane A. Gallagher, Mícheál P. Moloney, Michal Wojdyla, Susan J. Quinn, John M. Kelly and Yurii K. Gun'ko, Synthesis and spectroscopic studies of chiral CdSequantum dots, Journal of Materials Chemistry, 20, 2010, 8350-8355Download Item:
Synthesis and spectroscopic studies of chiral CdSe quantum dots.pdf (Published (publisher's copy) - Peer Reviewed) 271.4Kb
Abstract:
Using microwave irradiation, water soluble, optically active, penicillamine (Pen) capped CdSenanocrystals 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.
Sponsor
Grant Number
Science Foundation Ireland (SFI)
07/RFP/MASF250
Science Foundation Ireland (SFI)
07/RFP/CHEF437
Author's Homepage:
http://people.tcd.ie/jmkellyhttp://people.tcd.ie/igounko
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Journal of Materials Chemistry20
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Physical chemistry, photoluminescence, ChiralitySubject (TCD):
Nanoscience & MaterialsLicences: