Production and characterization of RF-sputtered PbO-GeO2 amorphous thin films containing silver and gold nanoparticles
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Journal of Non-Crystalline Solids
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In the present work we report the characterization of PbO-GeO2 films containing silver nanoparticles (NPs).
Radio Frequency (RF) co-sputtering was used for deposition of amorphous films on glass substrates. Targets
of 60PbO-40GeO2 (in wt%) and bulk silver with purity of 99.99% were RF-sputtered using 3.5 m Torr of argon.
The concentration of silver and gold NPs in the films was controlled varying the RF-power applied to the
targets (40–50 W for the PbO-GeO2 target; 6–8 W for the metallic target). The films obtained were annealed
in air at different temperatures and various periods of time. Absorption measurements have shown strong
NPs surface plasmon bands. Different widths and peak wavelengths were observed, indicating that size,
shape and distribution of the silver NPs are dependent on the deposition process parameters and on the
annealing of the samples. X-Ray Fluorescence and Transmission Electron Microscopy were also used to
characterize the samples.
Como referenciar
SILVA, DAVINSON M. da; KASSAB, LUCIANA R.P.; MARTINELLI, JOSE R.; ARAUJO, CID B. de. Production and characterization of RF-sputtered PbO-GeO2 amorphous thin films containing silver and gold nanoparticles. Journal of Non-Crystalline Solids, v. 356, n. 44-49, p. 2602-2605, 2010. DOI: 10.1016/j.jnoncrysol.2010.06.079. Disponível em: http://repositorio.ipen.br/handle/123456789/4551. Acesso em: 24 Mar 2026.
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