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Research Paper | Physics Science | India | Volume 4 Issue 4, April 2015
Luminescence Analysis of Eu3+ and Tb3+ ions doped Borate Zinc Magnesium Glasses
M. Venkateswarlu [2] | B. H. Rudramadevi
Abstract: This paper reports on the spectral and optical analysis of Eu3+ or Tb3+ ions (0.2 mol %) doped Borate Zinc Magnesium (BZM) glasses from the measurement of their absorption, excitation and emission properties. The measured emission spectrum of Eu3+BZM glass has revealed five transitions (5D0 - 7F0, 7F1, 7F2, 7F3 and 7F4) at 579, 591, 613, 652, and 701 nm, respectively with exci = 393 nm (7F0 - 5L6). In the case of Tb3+BZM glass, six emission transitions such as (5D3 -7F5, 7F4 & 5D4 -7F6, 7F5, 7F4 and 7F3) that are located at 414, 439, 488, 543, 585, and 621 nm respectively, have been measured with exci = 377 nm (7F6 -5G6). Energy level schemes relating to the emission mechanisms involved both in Eu3+ and Tb3+ glasses have been explained and also decay curves have been plotted in order to evaluate emission band lifetimes.
Keywords: Eu3+ and Tb3+ glasses, Optical properties
Edition: Volume 4 Issue 4, April 2015,
Pages: 3179 - 3184
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