Properties of White Light Emitting Eu2+ , Mn2+ Co-Doped Ca2SiO3Cl2 Phosphors Synthesized with Sol-Gel Method
The luminescent properties of Eu2+, Mn2+co-doped Ca2SiO3Cl2 phosphors synthesized by the sol-gel method were investigated. The crystal structure, pattern and luminescence properties were characterized by the X-ray diffraction (XRD), scanning electron microscope (SEM), and photoluminescence (PL) testing. The result showed that pure Ca2SiO3Cl2 was prepared at 570°C for 8h in the active carbon weak reducing atmosphere. The phosphor particles showed Eu2+ by the excitation spectrum located at 365nm found that spectra with an emission peak located at a 446nm and the other emission spectrum was dominated by the green peak located at 497nm. Due to the Eu2+ center transfer energy to the Mn2+ center that there be an emission spectrum peak located at 580nm. Three of emission spectrum peaks stacking to white light.
Zhong Cao, Xueqiang Cao, Lixian Sun, Yinghe He
Q. J. Ning et al., "Properties of White Light Emitting Eu2+ , Mn2+ Co-Doped Ca2SiO3Cl2 Phosphors Synthesized with Sol-Gel Method", Advanced Materials Research, Vols. 239-242, pp. 612-615, 2011