supported by the National Natural Science Foundation of China (10774012,10434030);Beijing Jiaotong University Program (2007XM048,2006XM038)
The upconversion emission spectra of Er^3+ doped oxyfluoride tellurite glasses excited by 808 nm laser diode (LD) were measured. The dependence of 550 nm upconversion emission on the excitation intensity was analyz...
supported by the National Natural Science Foundation of China (10774012 and 10434030);Beijing Jiaotong University Program (2007XM048, 2006XM038)
Nanosized long-persistent phosphors SrS:Eu^2+, Dy^3+ were prepared by the hydrothermal method.The samples were characterized by X-ray powder diffraction, transmission electron microscopy, and charge-coupled device ...