Self-assembly, microstructure and photoluminescence properties of nanocomposite mesoporous silica loaded with In2O3 and In2O3–SnO2
Authors: Zhu, X. B.; Duan, X. C.
Source: Materials Science and Technology, Volume 22, Number 12, December 2006 , pp. 1509-1512(4)
Publisher: Maney Publishing
Abstract:The mesoporous nanocomposite fabricated by self-assembly has many unique properties compared with the original materials. In2O3 (IO) and In2O3–SnO2 (ITO) in mesoporous silica were studied in the present paper. They were self-assembled in a nanoscale mesoporous silica by an adsorption–annealing process. The composite of IO and ITO in mesoporous silica was characterised by transmission electron microscopy, atomic force microscopy and nitrogen sorption isotherms. Photoluminescence spectra of the samples were measured by a fluorescence spectrophotometer. The results show that the composite was synthesised from IO and ITO in a nano-scale mesoporous silica with assembly structure, and bulk mesoporous silica is easier to be loaded by the particles than the sheet one, but the specific surface area decreases with increasing atomic weight of the substances loaded in silica mesoporous. The results also show that the mesoporous composite doped with some substance may enhance the effect of photoluminescence. For instance, the mesoprous composite of IO/SiO2 has an enhancement in the effect of photoluminescence, and that of the mesoprous nanocomposite of ITO/SiO2 is greater. Mesoporous nanocomposite is a promising photoluminescence material in the application to industry.
Document Type: Research Article
Publication date: 2006-12-01
Authors wishing to cite fast track papers should give the journal name and the article DOI. This will enable reference linking via CrossRef and allow forward and backward citation tracking systems to associate the fast track citation with the final journal reference.Materials Science and Technology is the successor of two previous titles, for which digitised archives are available: Metal Science (Vols. 1—17; 1967—84) and Metals Technology (Vols. 1—11; 1974—84).
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