Formation and Optical Properties of Ag Nanoparticles in CaB4O7–Ag2O and CaB4O7–Gd2O3–Ag2O Tetraborate Glasses

Authors V.T. Adamiv1, Ya.V. Burak1, R.V. Gamernyk2, R.M. Dutka1, I.M. Teslyuk1

1 Institute of Physical Optics, 23, Dragomanov Str., 7900 Lviv, Ukraine

2 Ivan Franko National University, 8, Kyryl and Methodiy Str., 79005 Lviv, Ukraine

Issue Volume 6, Year 2014, Number 4
Dates Received 25 July 2014; revised manuscript received 25 November 2014; published online 29 November 2014
Citation V.T. Adamiv, Ya.V. Burak, R.V. Gamernyk, et al., J. Nano- Electron. Phys. 6 No 4, 04033 (2014)
PACS Number(s) 61.46. – w,
Keywords Tetraborate glass, Ag nanoparticles, Plasmon resonance (2) , Nonlinear refractive index.
Annotation Formation of Ag nanoparticles (NPs) in the near-surface layer of CaB4O7–Ag2O and CaB4O7 –Gd2O3–Ag2O glasses by annealing in vacuum or in air is reported. It is concluded that annealing in vacuum does not necessary require the presence of reducing ions. Intensive plasmon absorption bands peaked at 403, 406 and 413.3 nm were observed in the absorption spectra of glasses with Ag NPs. Average radius of nanoparticles was calculated from the plasmon band half width and falls within 1.3-3.3 nm. It is concluded that calculated from normalized transmission spectra and absorption spectra the non-linear refractive index n2 increases due to the plasmon resonance in Ag NPs.

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