期刊
BRAZILIAN JOURNAL OF PHYSICS
卷 36, 期 2A, 页码 394-396出版社
SOCIEDADE BRASILEIRA FISICA
DOI: 10.1590/S0103-97332006000300043
关键词
synthesis and characterization; oxide glass; PbS quantum dots
The fusion method was used to produce PbS quantum dots (QDs) embedded in S-doped glass matrix (SiO2Na2CO3-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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