Vibrational spectra of bismuth silicate glasses and hydrogen-induced reduction effects

Pan, Zhejun; Henderson, D. O.; Morgan, S. H.

doi:10.1016/0022-3093(94)90349-2

Cited by 73 publications

(38 citation statements)

References 14 publications

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“…Silicate glasses containing Bi 2 O 3 are of great importance for their industrial and special applications as low-loss fiber optics, infrared transmitting materials or as active medium of Raman fiber optical amplifiers and oscillators [1][2][3][4]. These glasses have high nonlinear optical susceptibility and are used in all optical switching and in broadband amplification devices.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Li2O on structure and optical properties of lithium bismosilicate glasses

Ahlawat

Sanghi

Agarwal

et al. 2009

Journal of Alloys and Compounds

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Section: Introductionmentioning

confidence: 99%

“…The degradation of network is assumed to be systematic as the alkali concentration increases. The modification results in the formation of meta, pyro and ortho-silicates in the order: [SiO 4 [14]. Tenny and Wong.…”

Section: Introductionmentioning

confidence: 99%

Effect of Li2O on structure and optical properties of lithium bismosilicate glasses

Ahlawat

Sanghi

Agarwal

et al. 2009

Journal of Alloys and Compounds

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“…Fig. 1 shows the Raman spectrum of GPCl glass and the spectrum is composed of three spectral regions: (i) low frequency region (<300 cm −1 ) attributed to the collective modes of local structures and heavy metal vibrational modes [15,16]; (ii) intermediate region (300-665 cm −1 ) attributed to the deformation of vibrational modes of a glass network structure with bridged oxygen [17][18][19][20] and (iii) high frequency region (>665 cm −1 ) attributed to the stretching vibrational modes of the glass network former [19,20]. The Raman spectrum is developed through a deconvolution using Gaussian distribution and five bands appear at around 120, 191, 411, 530 and 800 cm −1 .…”

Section: Methodsmentioning

confidence: 99%

Intense frequency upconversion fluorescence emission of Er3+/Yb3+-codoped oxychloride germanate glass

Sun

Wen

Duan

et al. 2006

Journal of Alloys and Compounds

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“…They are promising materials for technological applications such as upconverting phosphors, new laser materials, and optical waveguides due to their low phonon energy [3,4]. They have special applications in the area of thermal and mechanical sensors, reflecting windows, low-loss fiber optic and infrared (IR)-transmitting materials (because of their long infrared cut-off wavelengths in excess of 9 lm) [5,6]. They are also used to produce, after appropriate annealing, high temperature superconductors with controllable microstructure [7,8].…”

Section: Introductionmentioning

confidence: 99%

Structure–property correlations in the SiO2–PbO–Bi2O3 glasses

Abo-Naf

Elwan

Marzouk

2011

J Mater Sci: Mater Electron

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SiO 2 -PbO-Bi 2 O 3 glasses having the composition of 35SiO 2 -xPbO-(65-x)Bi 2 O 3 (where x = 5, 10, 15, 20, 25, 35, 45; in mol%) have been prepared using the conventional melting and annealing method. Density, molar volume and Vickers microhardness of the prepared glasses were measured. Infrared (IR) and UV-visible spectroscopic techniques were used for structural studies of these glasses. Density as well as the microhardness increase systematically and, conversely, the molar volume decreases with increasing the lead oxide content. This behavior can be explained by the correlation with the glass structure. Increasing the lead oxide content (C20 mol%) increases the network former PbO 4 groups which can play an important role in increasing the connectivity and compactness of the glass matrix via increasing the cross-linking with the other constituent silicate and bismuthate structural units. The increased compactness may explain, in turn, the increase of the density and microhardness. IR spectra reinforce the idea that bismuth participates in the glassy network predominantly as BiO 6 octahedral structural units. UV-VIS optical absorption spectra revealed UV-charge transfer absorption bands related to the contribution of Pb 2? ions in the region 350-385 nm; in addition to the extrinsic absorption of trace iron impurities in the range 220-290 nm. In the visible region, three optical bands in the ranges 415-435, 605-650 and 880-890 nm were correlated with the contribution of electronic transitions in Bi 3? ions. Calculation of the optical mobility gap and the width of the energy tail of glass from the UV-VIS absorption indicated a slight increase followed by a decrease in their values. The behavior change occurred at the glass in which PbO content is 20 mol% where lead oxide starts to participate into the glassy matrix as a network former. The combination of analytical FTIR and UVvisible spectroscopy provided a consistent picture of structure-property relations in this glass system.

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Vibrational spectra of bismuth silicate glasses and hydrogen-induced reduction effects

Cited by 73 publications

References 14 publications

Effect of Li2O on structure and optical properties of lithium bismosilicate glasses

Effect of Li2O on structure and optical properties of lithium bismosilicate glasses

Intense frequency upconversion fluorescence emission of Er3+/Yb3+-codoped oxychloride germanate glass

Structure–property correlations in the SiO2–PbO–Bi2O3 glasses

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