Abstract
ZnO@mesoporous silica nanocomposite was prepared by the impregnation of a CMI-1 material in a Zn(NO) solution followed by calcination under O. Intensive characterization was carried out by N adsorption-desorption measurements, scanning and transmission electron microscopy. The optical properties of the ZnO@mesoporous silica nanocomposite were studied by photoluminescence spectroscopy. Quantum Size Effect was firstly demonstrated by subjecting the sample to a 254 nm excitation light, and was further confirmed by using a 680 nm excitation laser beam, which implies a two-photon absorption process. By focusing the 680 nm laser beam on different places in the sample, a very localized random laser effect, also induced by a two-photon absorption process, was detected.
Original language | English |
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Pages (from-to) | 1152-1156 |
Number of pages | 5 |
Journal | Journal of non-crystalline solids |
Volume | 355 |
Issue number | 18-21 |
DOIs | |
Publication status | Published - 1 Jul 2009 |
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Synthesis, Irradiation and Analysis of Materials (SIAM)
Louette, P. (Manager), Colaux, J. (Manager), Felten, A. (Manager), Tabarrant, T. (Operator), COME, F. (Operator) & Debarsy, P.-L. (Manager)
Technological Platform Synthesis, Irradiation and Analysis of MaterialsFacility/equipment: Technological Platform