38 research outputs found

    Spectroscopic properties of lithium borate glass containing Sm3+ and Nd3+ ions

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    Lithium borate glass samples mixed with a different concentration of Sm3+ and Nd3+ ions organized by quenching technique. Structural, vibration groups and spectral properties of glass samples investigated using X-ray diffraction, FTIR, UV/Vis/NIR and photoluminescence spectroscopy. The X-ray confirmed the lithium borate glass samples containing Sm3+ and Nd3+ ions in the amorphous state. Luminescence spectra of glass samples excited at 400 nm recorded, here three luminescence bands observed in Visible region, which due to spectra materials (Sm3+, Nd3+). These indicate that these glass samples responsible orange emission and used in the improvement of materials for LED, and optical devices. The functional vibration groups of the glass matrix studied using FTIR spectroscopy

    Preparation and Characterization of Silicate Glasses from Waste Agriculture Materials (Rice Husk and Peanut Peel)

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    Blue, Red, and Green Emission from Chromium and Copper Metal Doped Lithium Borate Glass

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    Abstract The influence of copper metal on the structural and optical properties (absorption and emission) of the lithium borate glass samples containing chromium considered. The analysis of FTIR spectra measured, indicated the copper and chromium ions act as network former and modifier depend on the concentration of everyone in the sample content. The ratio between the BO4 groups to the total boron groups (BO4+BO3) decreases with the copper content increases up to 2 mol % and then increase. The optical properties that the Dq/B decreases with the increase the copper and higher than 2.3 which indicates the glass samples containing Cr3+ions in the high-field sites and produce conventional laser action. The emission spectra show the intensity emission bands at 440 nm, 540 nm, and 730 nm for relative strong blue, green and red bands respectively.</jats:p

    Effect of copper addition on BO4, H2O groups and optical properties of lithium lead borate glass

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    Red and green emission from chromium metal or oxide on co-doped lithium tetraborate glass

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    The effect of MoO3 substitution for B2O3 on the structural and optical properties of bismuth borate glass

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