Effect of Gd2O3 in Li2O-AlF3-CaF2-P2O5-Eu2O3 glasses for laser medium and X-rays detection material applications

초록

The glass formula of 20Li(2)O+10AlF(3)+2.5CaF(2)+(66.5-x)P2O5+xGd(2)O(3)+1Eu(2)O(3) (PLACEu1Gdx), where x = 2,4,6,8,10 mol% have been prepared by conventional melt-quenching technique. These glasses' optical ab-sorption, photoluminescence, decay time, and radioluminescence have been measured at room temperature. Judd-Ofelt's (J-O) analysis of PLACEu1Gd8 has been investigated and the magnitude of parameters follows the trend as 02 > 04 > 06. The important laser parameters such as radiative properties are calculated using J-O pa-rameters and luminescence spectra. The decay time with the transition from the 5D0 level was estimated under 274 nm and 394 nm excitation using bi-exponential fitting. CIE coordinates, CCT and intensity ratio have been calculated for glass samples. The integral scintillation efficiency of PLACEu(1)Gd(8) is 31% compared with BGO crystal. The PLACEu1Gdx glasses are promising for laser medium and x-rays detection material applications.

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