Synthesis and characterization of PbS quantum dots embedded in oxide glass
I tiakina i:
| Kaituhi matua: | |
|---|---|
| Rā whakaputa: | 2006 |
| Ētahi atu kaituhi: | , , , , |
| Hōputu: | Article |
| Reo: | eng |
| Puna: | Repositório Institucional da UnB |
| Download full: | http://repositorio.unb.br/handle/10482/26723 https://dx.doi.org/10.1590/S0103-97332006000300043 |
Whakarāpopototanga: | 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. |