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Article Dans Une Revue Nanotechnology Année : 2010

Laser-induced direct space-selective precipitation of CdS nanoparticles embedded in a transparent silica xerogel

Résumé

A simple method, suitable for direct space-selective precipitation of semiconducting nanoparticles inside a transparent silica xerogel, is presented. The porous silica monoliths, prepared by the sol-gel method, are first loaded with specific CdS precursors. Then, the samples can be irradiated using either a femtosecond laser to generate the nanoparticles inside the deep volume of the silica matrix or a continuous visible laser to yield a nanocrystal growth under the surface. The resulting CdS nanoparticles are characterized using absorption and Raman spectroscopies, x-ray diffraction analysis and transmission electron microscopy.

Dates et versions

hal-00909778 , version 1 (26-11-2013)

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Hicham El Hamzaoui, Remy Bernard, A. Chahadih, Fernand Chassagneux, Laurence Bois, et al.. Laser-induced direct space-selective precipitation of CdS nanoparticles embedded in a transparent silica xerogel. Nanotechnology, 2010, 21 (13), pp.13402. ⟨10.1088/0957-4484/21/13/134002⟩. ⟨hal-00909778⟩
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