摘要:
Oil-soluble In
2O
3 nanoparticles and In
2O
3-SnO
2 nanocomposites were prepared in oleylamine via decomposition of metal acetylacetonate precursors. Thin films of In
2O
3 and In
2O
3-SnO
2 were obtained by spin-coating solutions of the oil-soluble In
2O
3 nanoparticles and In
2O
3-SnO
2 nanocomposites onto substrates and then calcining them. Transmission electron microspectroscopy, scanning electron microspectroscopy, atomic force microspectroscopy, X-ray diffraction, ultraviolet-visible absorption, and photoluminescence spectroscopy were used to investigate the properties of the nanoparticles and thin films. The In
2O
3 nanoparticles were cubic-phased spheres with a diameter of ~8 nm; their spectra exhibited a broad emission peak centered at 348 nm. The In
2O
3-SnO
2 nanocomposites were co-particles composed of smaller In
2O
3 particles and larger SnO
2 particles; their spectra exhibited a broad emission peak at 355 nm. After the In
2O
3-SnO
2 nanocomposites were calcined at 400℃, the obtained thin films were highly transparent and conductive, with a thickness of 30-40 nm; the surfaces of the thin films were smooth and crack-free.
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