Effective segregation coefficient of tellurium in ZnSe1-xTex and BeyZn1-ySe1-xTex bulk crystals grown using traveling solvent method

Effective segregation coefficient of tellurium in ZnSe1-xTcx and BeyZn1-ySe 1-xTex bulk crystals was evaluated. ZnSe1-x Te-x and BeyZn1-ySe1-xTex bulk crystals were grown using the traveling solvent method with tellurium solut ion. The growth rare was 3 mm/day at a peak: temperature of 1047 degrees C. ZnSe1-xTex mixed crystals contain tellurium from 1.2 to 6.5 at. % (0.02 < x < 0.13). BeyZn1-ySe1-xTex bulk mixed crystals contain tellurium from 1.8 to 19.5 at .% and beryllium from 0.02 to 5.0 at .% (0.03 < x < 0.39, 0.0004 < y < 0.10). Tellurium effective segregation coefficient was k = 0.55 +/- 0.15 fur ZnSe1-xTex and was k = 0.6 +/- 0.4 for BeyZn1-ySe1-xTex. We consid ered that these values were slightly less than unity due to the atomic size s and the electronegativity.