%0 Journal Article
%A Tran, Thi Hong
%A Pham, Duc Huyen Yen
%A Vu, Xuan Quang
%A Phan, Tien Dung
%D 2015
%F SisLab:1817
%J Materials Transactions
%N 9
%P 1419-1421
%T Luminescence Properties of Ce/Tb/Sm Co-Doped Tellurite Glass for White Leds Application
%U https://eprints.uet.vnu.edu.vn/eprints/id/eprint/1817/
%V 56
%X In this work, the Ce/Tb/Sm doped glasses with the composition of TeO2-B2O3-ZnO-Na2O were synthesized by melt quenching process. The photoluminescence properties of glasses doped with Ce3+, Tb3+ and Sm3+ single, doubly and triply doped TeO2-B2O3-ZnO-Na2O (TBZN) were studied by mean of emission and excitation spectra. There was an overlap between Ce3+ emission and Tb3+, Sm3+ absorption in the wavelength range of 350–500 nm. Therefore, it was expected that an efficient energy transfer occurred from Ce3+ to Tb3+ and Ce3+ to Sm3+ ions. When excited by ultraviolet wavelengths the co-doped glasses emit a combination of blue, green and red orange forming white light.