Author/Authors :
Andrade، نويسنده , , A.A. and Coutinho، نويسنده , , M.F. and de Castro، نويسنده , , M.P.P. and Vargas، نويسنده , , H. and Rohling، نويسنده , , J.H. and Novatski، نويسنده , , A. and Astrath، نويسنده , , N.G.C. and Pereira، نويسنده , , J.R.D. and Bento، نويسنده , , A.C and Baesso، نويسنده , , M.L. and Oliveira، نويسنده , , S.L. and Nunes، نويسنده , , L.A.O.، نويسنده ,
Abstract :
The thermal diffusivity and luminescence quantum efficiency of Eu in low silica calcium aluminosilicate glasses have been measured using the mode mismatch Thermal Lens technique (TL). Two different concentrations were studied: 0.5 and 5 (wt%) of Eu2O3. Our results show that the thermal diffusivity is independent of Eu2O3 concentration while the luminescence quantum efficiency decreased with the increasing in the doping concentration.
