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Synthesis and characterization of PbS quantum dots embedded in oxide glass

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Bibliografische gegevens
Hoofdauteur: Silva, R. S.
Publicatiedatum: 2006
Andere auteurs: Monte, A.F.G., Morais, P. C., Alcalde, A. M., Qu, Fanyao, Dantas, N. O.
Formaat: Article
Taal: eng
Bron: Repositório Institucional da UnB
Download full: http://repositorio.unb.br/handle/10482/26723
https://dx.doi.org/10.1590/S0103-97332006000300043
Samenvatting: The fusion method was used to produce PbS quantum dots (QDs) embedded in S-doped glass matrix (SiO2-Na2CO3-Al2O3-PbO2-B2O3:S). Measurements of optical absorption (OA), photoluminescence (PL) and atomic force microscopy (AFM) have been carried out in order to characterize the produced QDs. A strong red-shift observed in the optical features with an increase of the annealing time indicates an increase in QD-size. The QD sizes predicted by k.p theoretical results were confirmed by AFM observation.