摘要
We report on a simple and novel method to induce Si-related oxygen-deficient defects in CaO-Al_2O_3-SiO_2 glasses by using Al metal instead of part Al_2O_3.Blue emission is observed from the glass samples.Moreover,the quantities of the oxygen-deficient defects can be controlled by adjusting Al content. We also prepare glass samples using Al instead of part Al_2O_3 and doped with Eu^(3+) ions.Addition of Al results in reduction of Eu^(3+) ions to Eu^(2+) ions and change of the luminescence property.The investigation made on to control and characterize the defects could lead to the development of more efficient economical materials with improved properties.
We report on a simple anti novel method to induce Si-related oxygen-deficient defects in CaO-Al2O3-SiO2 glasses by using Al metal nstead of part Al2O3 Blue emission is observed from the glass samples. Moreover, the quantities of the oxygen-deficient defects can be controlled by adjusting AI content. We also prepare glass samples using AI instead of part Al2O3 and doped with Eu^3＋ ions. Addition of Al results in reduction of Eu^3＋ ions to Eu^2＋ ions and change of the luminescence property. The investigation made on to control and characterize the defects could lead to the development of more efficient economical materials with improved properties.
基金
Funded by the National Natural Science Foundation of China (No.50672087 and No.60778039)
National Basic Research Program of China (No.2006CB806000)
National High Technology Program of China (No.2006AA03Z304)
supported by Program for Changjiang Scholars and Innovative Research Team in University
关键词
硅酸盐玻璃
铝硅酸钙
铕掺杂
发光特性
缺陷
calcium aluminosilicate
Si-related defects
luminescence properties
