A novel method for preparing ordered SnO2/TiO2 alternate nanoparticulate films


Autoria(s): Cao LX; Wan HB; Huo LH; Xi SQ
Data(s)

2001

Resumo

A novel method using LB films as precursors to prepare pure inorganic ordered film with periodic structure was developed. Surfactant-stabilized SnO2 nanoparticulate organosols and TiO2 nanoparticulate organosols were prepared and used as spreading solutions. Using LB technique, the good film-forming ability of the surfactant-stabilized SnO2 nanoparticles and TiO2 nanoparticles was confirmed by the determination of the pi -A isotherms. The surfactant-stabilized SnO2 and TiO2 nanoparticulate monolayers were fabricated on the water surface and then were transferred to solid substrates (CaF2, quartz, silicon, and so on) alternately, layer-by-layer. Then the as-deposited alternate LB film was treated at different temperatures. The as-deposited alternate LB film and the treated film were characterized by Fourier transform infrared spectroscopy, UV visible spectroscopy, X-ray diffraction, and X-ray photoelectron spectroscopy. The results indicate that our method was successful. The as-deposited alternate LB film formed a periodic structure with a long spacing of 6.5 nm that was composed of SnO2 nanoparticles, TiO2 nanoparticles, and arachidic acid. The treated film composed of SnO2 nanoparticles and TiO2 nanoparticles formed a pure inorganic periodic structure with an ordered distance of 5.4 nm. (C) 2001 Academic Press.

Identificador

http://ir.ciac.jl.cn/handle/322003/20463

http://www.irgrid.ac.cn/handle/1471x/154966

Idioma(s)

英语

Fonte

Cao LX;Wan HB;Huo LH;Xi SQ.A novel method for preparing ordered SnO2/TiO2 alternate nanoparticulate films,JOURNAL OF COLLOID AND INTERFACE SCIENCE,2001,244(1):97-101

Palavras-Chave #LANGMUIR-BLODGETT-FILMS #SEMICONDUCTOR-FILMS #OXIDE LAYERS #THIN-FILMS #DEPOSITION #TIO2 #FABRICATION #CDS
Tipo

期刊论文