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Radiative properties of carriers in CdSe-CdS core-shell heterostructured nanocrystals of various geometries
KTH, School of Information and Communication Technology (ICT), Materials- and Nano Physics, Optics and Photonics, OFO.
KTH, School of Information and Communication Technology (ICT), Materials- and Nano Physics, Optics and Photonics, OFO.
KTH, School of Information and Communication Technology (ICT), Materials- and Nano Physics, Optics and Photonics, OFO.
KTH, School of Information and Communication Technology (ICT), Materials- and Nano Physics, Optics and Photonics, OFO.
2013 (English)In: Journal of the European Optical Society - Rapid Publications, ISSN 1990-2573, E-ISSN 1990-2573, Vol. 8, 13042- p.Article in journal (Refereed) Published
Abstract [en]

We report a model on core-shell heterostructured nanocrystals with CdSe as the core and CdS as the shell. The model is based on one-band Schrodinger equation. Three different geometries, nanodot, nanorod, and nanobone, are implemented. The carrier localization regimes with these structures are simulated, compared, and analyzed. Based on the electron and hole wave functions, the carrier overlap integral that has a great impact on stimulated emission is further investigated numerically by a novel approach. Furthermore, the relation between the nanocrystal size and electron-hole recombination energy is also examined.

Place, publisher, year, edition, pages
2013. Vol. 8, 13042- p.
Keyword [en]
CdSe-CdS core-shell nanocrystal, FEM model, carrier distribution, electron-hole recombination energy, nanobone
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Identifiers
URN: urn:nbn:se:kth:diva-125782DOI: 10.2971/jeos.2013.13042ISI: 000321486200001Scopus ID: 2-s2.0-84880115649OAI: oai:DiVA.org:kth-125782DiVA: diva2:640656
Note

QC 20130814

Available from: 2013-08-14 Created: 2013-08-13 Last updated: 2017-12-06Bibliographically approved

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