Dilution effects on the photoluminescence of ZnSe quantum-dot dispersions

Mei, Bing C. and Wang, Jun and Qiu, Qi and Heckler, Tracy and Petrou, Athos and Mountziaris, T. J.. (2008) Dilution effects on the photoluminescence of ZnSe quantum-dot dispersions. Applied Physics Letters, 93 (8). 083114. ISSN 00036951

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We report results for the photoluminescence emission intensity from ZnSe quantum-dot dispersions in liquids as a function of particle concentration. The observed emission intensity initially increases with dilution, exhibits a maximum, and then decreases. The optimal particle concentration yielding the maximum emission intensity increases as the particle size decreases. The corresponding optimal interparticle distance was estimated for three quantum-dot populations having different average particle size. The observed behavior depends on fundamental physical interactions between the exciting and emitted radiation and the quantum dots; it is expected to be valid for any quantum-dot dispersion, irrespective of material type.

Item Type: Article
Additional Information: Reprinted with permission from "Dilution effects on the photoluminescence of ZnSe quantum-dot dispersions", Mountziaris T.J et al., Applied Physics Letters, 93(8), 083114. Copyright [2008], American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics
InterNano Taxonomy: Nanoscale Objects and Nanostructured Materials > Nanoparticles > Nanoshells
Nanomanufacturing Characterization Techniques > Other Characterization Techniques > Photoluminescence (PL) spectroscopy
Nanomanufacturing Characterization Techniques
Nanoscale Objects and Nanostructured Materials > Nanoparticles > Quantum confinement
Collections: Nanomanufacturing Research Collection > Nanomanufacturing Nanoscale Science and Engineering Centers > Center for Hierarchical Manufacturing
Nanomanufacturing Research Collection
Depositing User: Moureen Kemei
Date Deposited: 16 Feb 2010 21:05
Last Modified: 19 Sep 2011 21:41
URI: http://eprints.internano.org/id/eprint/276

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