The Study of Photoluminescence and Thermal Characteristic on Sr2SiO4:Eu3+ Phosphor

• Main Authors: Rein-Hon Yuan, 袁瑞鴻
• Other Authors: 唐自標
• Format: Others
• Language: zh-TW
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/dftydr

碩士 === 國立臺北科技大學 === 材料科學與工程研究所 === 97 === The study used the solid state reaction to prepare the Sr2SiO4:Eu3+phosphor,.We found the optimal parameters to synthesize the Host, Sr2SiO4 ,by different parameters including the mix ratio of SrCO3 and SiO2、different calcined temperature、holding time、different B2O3 concentration.We probe the influence of luminescence characteristic on Sr2SiO4：Eu3+ phosphors by different doping concentration of Eu、calcined temperature、holding time and B2O3 concentration,respectively,then we observed the influence of thermal stability.The result shows the sharp emissiom peak at 618nm that attributed to the typical f→f transition of Eu3+, whereas the emission peaks﹕578nm、589nm、618nm、650nm、702nmare attributed to the Eu3+ 5D0→7FJ=0 to 4 multiplets transition at the excitation 395nm. The luminous intensity increased as raising the concentration of activator, and the maximum luminous intensity was observed with Eu 5mole%、B2O3 5wt% ,and fired at 1300°C for 3 hours. In addition, luminous intensity of Sr2SiO4：Eu3+ phosphor reduces as the temperature increases, and the wavelength peak has blue shift excess 150°C.