Continuous laser direct-writing of PbS nanoparticles inside transparent silica monoliths

A. Chahadih (1) , Hicham El Hamzaoui (1) , Remy Bernard (1) , Laurence Bois (2) , F. Béclin (3, 4) , Odile Cristini-Robbe (1) , Bruno Capoen (1) , Mohamed Bouazaoui (1)

1 PhLAM - Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523
2 LMI - Laboratoire des Multimatériaux et Interfaces
3 LSPES - Laboratoire de structures et propriétés de l'état solide - UMR 8008
4 UMET - Unité Matériaux et Transformations - UMR 8207

Direct space-selective growth of PbS nanoparticles, embedded inside a transparent porous sol-gel derived silica matrix, has been achieved using continuous laser irradiation. Before the irradiation, the porous silica host has been soaked in a PbS precursor solution. The effect of the concentration of PbS precursors and of the incident laser power on the mean particle size was studied. Absorption spectroscopy, X-ray diffraction analysis, and TEM measurements were used to identify the PbS crystallites inside the xerogel and to estimate the average particle size. It has been shown that PbS crystallite sizes range

Domaines: Optique [physics.optics]

A. Chahadih, Hicham El Hamzaoui, Remy Bernard, Laurence Bois, F. Béclin, et al.. Continuous laser direct-writing of PbS nanoparticles inside transparent silica monoliths. Journal of Nanoparticle Research, 2011, 13, pp.6507. ⟨10.1007/s11051-011-0554-1⟩. ⟨hal-00903838⟩