Structural and luminescence studies of europium ions in lithium aluminium borophosphate glasses

查看全文 作　　者：Poh Sum [1]Wong;Ming Hua [1]Wan;Rosli [1]Hussin;Hendrik [2]O.Lintang;Salasiah [3]Endud

机构地区：[1]Phosphor Research Group, Department of Physics, Faculty of Science, Universiti Teknologi Malaysia;[2]Ibnu Sina Institute for Fundamental Science Studies, Universiti Teknologi Malaysia;[3]Department of Chemistry, Faculty of Science,Universiti Teknologi Malaysia

出　　处：《Journal of Rare Earths》索引2014年第32卷第7期,共8页

基　　金：Project supported by the Ministry of Higher Education(MOHE),the Ministry of Science,Technology and Innovation(MOSTI)and Universiti Teknologi Malaysia via Research University Grant Project(R.J130000.7826.4F140);Nanofund Grant(J.130000.7926.4H007) 摘　　要：Eu3+ doped borophosphate glasses with the chemical composition 20Li2O-30Al2O3-10B2O3-40P2O5-xEu2O3(where x=0.05 mol.%, 0.1 mol.%, 1.0 mol.%, 1.5 mol.% and 2.0 mol.%) were prepared by conventional melt quenching technique. The structural and luminescence properties of the prepared Eu3+ doped borophosphate glasses were studied and compared with reported results. The XRD pattern showed the amorphous nature of the prepared glasses. Whereas, the FTIR spectra revealed the vibrational modes in the prepared glasses. The bonding parameters( β and ?) were calculated through the excitation spectra. Judd–Ofelt(J–O) intensity parameters were calculated from the emission spectra and were used to determine transition probability(A), stimulated emission cross-section(σE P), radiative lifetime(τR) and branching ratios(βexp) for the transition 5D0→7Fj(j=1, 2, 3 and 4) of Eu3+ ions. Furthermore, the luminescence intensity ratio(R) of 5D0→7F2 to 5D0→7F1 transition was also calculated. Transition 5D0→7F2 had the highest value of stimulated emission cross-section and branching ratios and the results were comparable with the reported values. This indicated that the present glass is promising host material for Eu3+ doped fiber amplifiers. 关键词：磷酸盐玻璃发光性能铕离子结构硼受激发射光纤放大器铕掺杂

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Structural and luminescence studies of europium ions in lithium aluminium borophosphate glasses

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