tellurium and boron-oxide

tellurium has been researched along with boron-oxide* in 2 studies

Other Studies

2 other study(ies) available for tellurium and boron-oxide

Article	Year
The effect of remelting on the physical properties of borotellurite glass doped with manganese. International journal of molecular sciences, 2013, Jan-07, Volume: 14, Issue:1 A systematic set of borotellurite glasses doped with manganese (1-x) [(B(2)O(3))(0.3)(TeO(2))(0.7)]-xMnO, with x = 0.1, 0.2, 0.3 and 0.4 mol%, were successfully synthesized by using a conventional melt and quench-casting technique. In this study, the remelting effect of the glass samples on their microstructure was investigated through density measurement and FT-IR spectra and evaluated by XRD techniques. Initial experimental results from XRD evaluation show that there are two distinct phases of glassy and crystallite microstructure due to the existence of peaks in the sample. The different physical behaviors of the studied glasses were closely related to the concentration of manganese in each phase. FTIR spectra revealed that the addition of manganese oxide contributes the transformation of TeO(4) trigonal bipyramids with bridging oxygen (BO) to TeO(3) trigonal pyramids with non-bridging oxygen (NBO). Topics: Boron; Boron Compounds; Glass; Manganese; Manganese Compounds; Oxides; Oxygen; Physical Phenomena; Spectroscopy, Fourier Transform Infrared; Tellurium; X-Ray Diffraction	2013
Effect of B2O3 on luminescence of erbium doped tellurite glasses. Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 2007, Volume: 66, Issue:2 The B2O3 was introduced into the Er3+ doped TeO2-ZnO-Na2O glass to increase the phonon energy of the host. The effect of B2O3 on the non-radiative rate of the 4I11/2-->4I13/2 transition of Er3+, the lifetime of the 4I11/2 and 4I13/2 levels, the green and red upconversion emissions intensity, and the 4I13/2-->4I15/2 emission intensity was discussed. The results show that the phonon energy of boro-tellurite glass is close to that of germanate glass and is quite smaller than that of borate glass. The lifetime of 4I11/2 level and the upconversion emissions decrease with increasing B2O3 concentration. The higher OH group concentration presented in the boro-tellurite glass may shorten the lifetime of 4I13/2 level and also reduce the quantum efficiency of 4I13/2-->4I15/2 emission. The future dehydrating procedures are suggested to enhance the efficiency of amplification at 1.5 microm band. Topics: Boron Compounds; Erbium; Glass; Luminescent Measurements; Spectroscopy, Fourier Transform Infrared; Tellurium	2007

Article

Year

The effect of remelting on the physical properties of borotellurite glass doped with manganese.

International journal of molecular sciences, 2013, Jan-07, Volume: 14, Issue:1

A systematic set of borotellurite glasses doped with manganese (1-x) [(B(2)O(3))(0.3)(TeO(2))(0.7)]-xMnO, with x = 0.1, 0.2, 0.3 and 0.4 mol%, were successfully synthesized by using a conventional melt and quench-casting technique. In this study, the remelting effect of the glass samples on their microstructure was investigated through density measurement and FT-IR spectra and evaluated by XRD techniques. Initial experimental results from XRD evaluation show that there are two distinct phases of glassy and crystallite microstructure due to the existence of peaks in the sample. The different physical behaviors of the studied glasses were closely related to the concentration of manganese in each phase. FTIR spectra revealed that the addition of manganese oxide contributes the transformation of TeO(4) trigonal bipyramids with bridging oxygen (BO) to TeO(3) trigonal pyramids with non-bridging oxygen (NBO).

Topics: Boron; Boron Compounds; Glass; Manganese; Manganese Compounds; Oxides; Oxygen; Physical Phenomena; Spectroscopy, Fourier Transform Infrared; Tellurium; X-Ray Diffraction

2013

Effect of B2O3 on luminescence of erbium doped tellurite glasses.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 2007, Volume: 66, Issue:2

The B2O3 was introduced into the Er3+ doped TeO2-ZnO-Na2O glass to increase the phonon energy of the host. The effect of B2O3 on the non-radiative rate of the 4I11/2-->4I13/2 transition of Er3+, the lifetime of the 4I11/2 and 4I13/2 levels, the green and red upconversion emissions intensity, and the 4I13/2-->4I15/2 emission intensity was discussed. The results show that the phonon energy of boro-tellurite glass is close to that of germanate glass and is quite smaller than that of borate glass. The lifetime of 4I11/2 level and the upconversion emissions decrease with increasing B2O3 concentration. The higher OH group concentration presented in the boro-tellurite glass may shorten the lifetime of 4I13/2 level and also reduce the quantum efficiency of 4I13/2-->4I15/2 emission. The future dehydrating procedures are suggested to enhance the efficiency of amplification at 1.5 microm band.

Topics: Boron Compounds; Erbium; Glass; Luminescent Measurements; Spectroscopy, Fourier Transform Infrared; Tellurium

2007