The dielectric function of PbS quantum dots in a glass matrix
- 2 April 2012
- journal article
- Published by Optica Publishing Group in Optical Materials Express
- Vol. 2 (5), 496-500
- https://doi.org/10.1364/ome.2.000496
Abstract
The dielectric function of PbS quantum dots (Qdots) with diameters of 3.5-5.0 nm in glass matrix is determined from transmission measurements by Maxwell-Garnett effective medium theory combined with iterative Kramers-Kronig analysis. The algorithm used provides real and imaginary part of the dielectric function in the 200-1800 nm spectral range, for both Qdot-doped glasses as well as the PbS Qdots alone. The latter data are compared with the results obtained from colloidal PbS quantum dots and, within the limits of the experimental error, agreement is found.Keywords
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