Comparison of the synthesis routes for the ZnO/porous silica nanocomposite
Journal Title: Semiconductor Physics, Quantum Electronics and Optoelectronics - Year 2016, Vol 19, Issue 4
Abstract
ZnO/porous silica nanocomposites were successfully fabricated by three different types of synthesis techniques. In all cases, the molecular sieve SBA-16 was used as a porous matrix. The in situ growth the nanoparticles of zinc oxide within the matrix pores was done using either gaseous or liquid precursors. The ex-situ method implied growing of nanoparticles in a colloidal solution with further penetration of the ripened ZnO nanoparticles into the pores of the matrix. Physico-chemical studies of the synthesized ZnO/porous silica nanocomposites showed that the introduction of zinc oxide by any of the methods did not lead to destruction of the structure of the molecular matrix SBA-16. The structure of ZnO nanoparticles, on the contrary, was strongly dependent on the growing method. The best defectless ZnO nanoparticles were obtained by in situ growing using gaseous precursors.
Authors and Affiliations
G. Yu. Rudko, S. A. Kovalenko, E. G. Gule, V. V. Bobyk, V. M. Solomakha, A. B. Bogoslovskaya
Keywords
Related Articles
- EP ID EP178427
- DOI 10.15407/spqeo19.04.352
- Views 73
- Downloads 0
Electron transport through nanocomposite SiO2(Si) films containing Si nanocrystals
The current transport through insulating SiO2 films with silicon nanocrystals in Si/SiO2(Si)/Al structures has been investigated in the wide range of temperatures (82…350 K). The nanocomposite SiO2(Si) films containing t...
The phenomenon of magnetic exchange bias in ferromagnetic nanocomposites grown by electron beam evaporation
For the first time, in ferromagnetic nanocomposites Co/СoO/Al2O3 formed by two-crucible electron beam evaporation with deposition on a policor substrate, the magnetic exchange bias was observed. It is associated with the...
The influence of physical and technological magnetron sputtering modes on the structure and optical properties of CdS and CdTe films
To create technology for preparation of CdS and CdTe thin films by direct current magnetron sputtering, the influence of physical and technological condensation modes on the crystal structure and optical properties of th...
Fluorescence of molecules placed near a spherical particle: Rabi splitting
Theoretical study of spontaneously emitted spectra of point-like source placed near spherical Ag particle was performed. It was shown that near-field electromagnetic interaction between a point-like emitter and spherical...
Self-organization in irradiated semiconductor crystals caused by thermal annealing
Annealing of complex semiconductors GaP and CdP 2 , irradiated at room temperature by high fluences of electrons within 1…30 MeV energy interval and 80 MeV α -particles, was carried out and main electrical parameters (co...