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Electronic states of elongated PbSe/PbS Core/shell quantum dots

Walsh, T; Miloszewski, J; Aeberhard, U; Tomic, S

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Authors

T Walsh

J Miloszewski

U Aeberhard

S Tomic



Abstract

The optical characteristics of colloidal quantum dots (QDs) are highly dependent on the physical geometry of the QD (size, shape) as well as composition. These dependencies make such systems attractive for application in novel optical devices, notably for solar cell technology. Empirical electronic structure methods, such as kcenterdotp theory, or empirical pseudopotential theories have successfully reproduced experimentally observed transitions in CdSe and PbSe colloidal QDs. Our approach uses the kcenterdotp method to predict such properties as the electronic structure and dipole transitions of ellipsoidal PbSe/PbS core/shell structure colloidal QDs, as a function of eccentricity. Due to the anisotropy between the longitudinal (z) and transverse (x and y) directions, we present results from elongation along both the x and z directions.

Citation

Walsh, T., Miloszewski, J., Aeberhard, U., & Tomic, S. (2014). Electronic states of elongated PbSe/PbS Core/shell quantum dots. Journal of Physics: Conference Series, 526, 012010. https://doi.org/10.1088/1742-6596/526/1/012010

Journal Article Type Article
Publication Date Jan 1, 2014
Deposit Date Nov 7, 2016
Publicly Available Date Nov 7, 2016
Journal Journal of Physics: Conference Series
Print ISSN 1742-6588
Publisher IOP Publishing
Volume 526
Pages 012010
DOI https://doi.org/10.1088/1742-6596/526/1/012010
Publisher URL http://dx.doi.org/10.1088/1742-6596/526/1/012010

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