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The effect of CUO and MGO impurities on the optical properties of lithium potassium borate glass

Mustafa Alajerami, Yaser Saleh and Hashim, Suhairul and Wan Hassan, Wan Muhamad Saridan and Ramli, Ahmad Termizi (2012) The effect of CUO and MGO impurities on the optical properties of lithium potassium borate glass. Physica B: Condensed Matter, 407 (13). pp. 2390-2397. ISSN 0921-4526

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Official URL: http://dx.doi.org/10.1016/j.physb.2012.03.029


Previous study proved the efficiency of copper as one of the most luminescent activators. In this work, Li 2CO 3-K 2CO 3-H 3BO 3 (LKB) glasses co-doped with copper oxide (CuO) and magnesium oxide (MgO) have been prepared by chemical quenching technique. Two techniques have been applied to investigate the effect of co-dopants on the physical and optical properties of the new glass network. The X-ray Diffraction (XRD) results showed the amorphous nature of the sample. Fourier transform infrared (FTIR) spectra, energy band gap, density, ion concentration, molar volume, Polaron radius and inter-nuclear distance have been analyzed in the light of the different oxidation states of co-doped ions in the glass matrix. The exchange in the concentration of magnesium and copper ions illustrated the great effect of magnesium as a co-dopant on the Photoluminescence (PL) emission of LKB doped with copper oxide. Due to the change in the copper concentration, a broad green emission with intensity of around 300 (a.u) has been observed. Enhancement of about three times has been shown with the increment of 0.1 mol% of CuO and MgO as a co-dopant technique. It is well known that magnesium oxide alone does not show strong-luminescence, but during this increment, MgO acted as activator (co-dopant) for Cu ions. This enhancement may contribute to the energy transfer from Mg 2 ions to monovalent Cu + ion. The current results are discussed and compared with other related studies.

Item Type:Article
Uncontrolled Keywords:copper impurities, lithium potassium borate, magnesium impurities
Subjects:Q Science > QC Physics
ID Code:47605
Deposited By: Narimah Nawil
Deposited On:22 Jun 2015 05:56
Last Modified:29 Feb 2020 13:18

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