Optical absorption and structural studies of bismuth borate glasses containing Er3+ ions

Farouk, M.; Samir, A.; Metawe, F.; El-Okr, Mohamed

doi:10.1016/j.jnoncrysol.2013.04.001

Cited by 134 publications

(37 citation statements)

References 41 publications

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“…This is the indication that structure is now loosely packed with increase in SiO 2 content. Similar results were also reported [7].…”

Section: Fig 8 Absorption Spectra Of Ndsupporting

confidence: 91%

“…Similar results for density were also observed [6]. Also for molar volume with varying host matrix, molar volume increases is reported [7]. Decrease in density is due to the replacement of B 2 O 3 (69.622) by SiO 2 (60.085) as in decrease of the molar mass of SiO 2 .…”

Section: Physical Analysissupporting

confidence: 82%

“…Decrease in density is due to the replacement of B 2 O 3 (69.622) by SiO 2 (60.085) as in decrease of the molar mass of SiO 2 . In general, it is expected that the density and the molar volume should show opposite behaviour to each other [7] and our present work shows the similar behaviour. The Nd-ion concentration (N) is of great interest since it affects different properties of the host material.…”

Section: Physical Analysissupporting

confidence: 73%

“…The number of ions per cubic centimetre was calculated according to the Eq. (3) of Table 2 [7]. The calculated values of concentration are collected in Table 3 and corresponding graph is shown in Fig.…”

Section: Physical Analysismentioning

confidence: 99%

“…Oxygen packing density (OPD) is a measure of the tightness of the oxide network [7]. It is calculated by the formula given in Table 2.…”

Section: Physical Analysismentioning

confidence: 99%

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Optical and Physical Analysis of Nd3+ Doped Borosilicate Glasses

Sharma¹,

Goyal²,

Pal³

et al. 2015

JMSE-B

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Abstract:Nowadays rare earth doped glasses are becoming very interesting among researchers due to their physical and optical properties. In the present work physical and optical parameters were computed for borosilicate glasses doped with Neodymium ion. The glass samples were prepared by conventional melt quenching technique. Their final composition is (50 -x) B 2 O 3 -(10 + x) SiO 2 -10 Na 2 O -20PbO -10 ZnO-0.3 Nd 2 O 3 (where x = 0, 5, 10, 15, 20, 25, 30, 35 and 40). The amorphous nature of the glass samples was confirmed by XRD (X-ray diffraction). Composition and functional groups of the glass samples were confirmed by EDX (Energy-dispersive X-ray spectroscopy) and FTIR (Fourier transform infrared spectroscopy) respectively. SEM (Scanning Electron microscopy) and TEM (Transmission electron microscope) images were recorded. Absorption spectra have been recorded at room temperature in UV-VIS-NIR region. Energy and intensity parameters were computed for Nd 3+ doped glasses. Physical parameters were measured for the present glass. The optical energy band gap was computed for all different concentration of SiO 2 contents. It was found that with increasing of the concentration of SiO 2 contents, the values of physical parameters decreases.

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“…This is the indication that structure is now loosely packed with increase in SiO 2 content. Similar results were also reported [7].…”

Section: Fig 8 Absorption Spectra Of Ndsupporting

confidence: 91%

Section: Physical Analysissupporting

confidence: 82%

Section: Physical Analysissupporting

confidence: 73%

Section: Physical Analysismentioning

confidence: 99%

“…Oxygen packing density (OPD) is a measure of the tightness of the oxide network [7]. It is calculated by the formula given in Table 2.…”

Section: Physical Analysismentioning