Abstract:Glass systems of 73TeO 2 -4BaO-3Bi 2 O 3 -2Eu 2 O 3 -xAg (in molar ratio where x = 0, 1, 2, and 3) compositions have been successfully synthesized. Silver nanoparticles were obtained with the employment of heat treatment (HT) procedure executed at 350 ∘ C. Glass transition temperatures of different compositions have been determined through DSC measurements. XRD results presented characteristic amorphous halo indicating lack of long range order in the samples. FTIR structural studies revealed that glass matrix … Show more
“…Additionally, to confirm metallic state of silver, the Auger parameter (α) has been calculated according to the formula: where BE is the binding energy of Ag3d 5/2 peak and KE is the kinetic energy of Ag M 4 N 45 N 45 ) peak 52 , 54 , 55 . The calculated parameter is 726 eV, what perfectly match to metallic silver 55 , 56 . Figure 7 High resolution XPS spectra for Cu2p, Ag3d and AgMNN regions, recorded for nanostructures manufactured from Ag–Cu bilayers with total thickness of 8 nm, annealed at 800 K for 15 min.…”
Formation of plasmonically active silver, copper and composite silver-copper nanostructures were studied in this paper. Metallic nanostructures were fabricated by thermal disintegration, so called dewetting, of the thin films in an argon atmosphere. The formation process of the nanostructures was in-situ observed by a novel method, based on resistance measurements. The influence of the material and thickness of the initial thin film on temperature of their disintegration was investigated. Electrical measurements were validated by scanning electron microscopy observations, while metallic the behavior of nanostructures was studied by XPS method. The formation of silver-copper nanocomposite structures was confirmed by UV–vis spectroscopy. Plasmon resonance with two characteristic peaks for nanocomposite structures was observed.
“…Additionally, to confirm metallic state of silver, the Auger parameter (α) has been calculated according to the formula: where BE is the binding energy of Ag3d 5/2 peak and KE is the kinetic energy of Ag M 4 N 45 N 45 ) peak 52 , 54 , 55 . The calculated parameter is 726 eV, what perfectly match to metallic silver 55 , 56 . Figure 7 High resolution XPS spectra for Cu2p, Ag3d and AgMNN regions, recorded for nanostructures manufactured from Ag–Cu bilayers with total thickness of 8 nm, annealed at 800 K for 15 min.…”
Formation of plasmonically active silver, copper and composite silver-copper nanostructures were studied in this paper. Metallic nanostructures were fabricated by thermal disintegration, so called dewetting, of the thin films in an argon atmosphere. The formation process of the nanostructures was in-situ observed by a novel method, based on resistance measurements. The influence of the material and thickness of the initial thin film on temperature of their disintegration was investigated. Electrical measurements were validated by scanning electron microscopy observations, while metallic the behavior of nanostructures was studied by XPS method. The formation of silver-copper nanocomposite structures was confirmed by UV–vis spectroscopy. Plasmon resonance with two characteristic peaks for nanocomposite structures was observed.
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