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 74
- Downloads 0
Electronic properties of graphene/ZnO 2D-2D composite
Within the framework of methods of the electron density functional and the ab initio pseudopotential, we have obtained the spatial distributions of the valence electrons density, the electron energy spectra and the Coulo...
I127 NQR spectra of Pb1–xCdxI2 and (BiI3)(1–x)(PbI2)x of mixed layered semiconductors
The results of studying the concentration and temperature dependences of NQR spectrum parameters inherent to I127 in mixed layered semiconductors Pbx–1CdxI2 and (BiI3)(1–x)(PbI2)x are presented for x ≤ 0.30 and T = 77…15...
How the phosphorus chains impact on the vibrational properties of diphosphides ZnP2 and CdP2 at low temperatures
The temperature dependence of the vibrational modes in the diphosphides ZnP2 and CdP2 has been studied by employing IR reflectance spectroscopy within the 4…300 K temperature range in the polarized radiation. It has been...
Analysis of the silicon solar cells efficiency. Type of doping and level optimization
The theoretical analysis of photovoltaic conversion efficiency of highly effective silicon solar cells (SC) has been performed for n-type and p-type bases. Considered here is the case when the Shockley–Read–Hall recombin...
Using nanosphere lithography for fabrication of a multilayered system of ordered gold nanoparticles
New modification of nanosphere lithography has been realized to obtain multilayered systems of ordered gold nanopartciles (NP). NP have been formed using vacuum deposition of 5…60-nm layer of gold on ionic etched multila...