Synthesis and characterization of PbS quantum dots embedded in oxide glass
AUTOR(ES)
Silva, R. S., Monte, A.F.G., Morais, P. C., Alcalde, A. M., Qu, Fanyao, Dantas, N. O.
FONTE
Brazilian Journal of Physics
DATA DE PUBLICAÇÃO
2006-06
RESUMO
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.
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