The photoluminescence glass fiber in Eu^(3+) doped ZnO-MgO-CdO-B_2O_3 isdrawn artificially by high-temperature solid state reaction and glass stream hauling method inhandling of photoluminecent waste material . Its di...The photoluminescence glass fiber in Eu^(3+) doped ZnO-MgO-CdO-B_2O_3 isdrawn artificially by high-temperature solid state reaction and glass stream hauling method inhandling of photoluminecent waste material . Its diameter is 0 .01 approx 0.30 mm and its length ismore than 10 m. The strong emission band of Eu^(3+) at 613 nm belongs to ~5D_0- >~7F_2 electricdipole transition, and the emission intensity at 591 nm is 40 percent of that at 613 nm andintensity belongs to ~5D_0- >~7F_2 magnetic dipole transition . It is known to all that Eu^(3+)mainly hold asymmetrical center lattice in local ambient and also possesses symmetrical centerlattice. By fitting decay curves of Eu^(3+) of different concentrations, it is discovered that theluminescence changes from the first order decay to the second order decay while the concentrationsof Eu^(3+) are increased . It is observed by SEM that glass fiber shows smooth surface , low crystalgrowing rate , high density of fracture and shellfish veins of fracture obviously submits ditchform. Meanwhile, a series of mechanics parameters were measured and the spectral behaviors of theglass fiber in Eu doped ZnO-MgO-CdO-B_2O_3 were studied.展开更多
基金Project supported by the National Natural Science Foundation of China (20261006 ) Natural Science Foundation of Jilin Province (990550 20040506 2)
文摘The photoluminescence glass fiber in Eu^(3+) doped ZnO-MgO-CdO-B_2O_3 isdrawn artificially by high-temperature solid state reaction and glass stream hauling method inhandling of photoluminecent waste material . Its diameter is 0 .01 approx 0.30 mm and its length ismore than 10 m. The strong emission band of Eu^(3+) at 613 nm belongs to ~5D_0- >~7F_2 electricdipole transition, and the emission intensity at 591 nm is 40 percent of that at 613 nm andintensity belongs to ~5D_0- >~7F_2 magnetic dipole transition . It is known to all that Eu^(3+)mainly hold asymmetrical center lattice in local ambient and also possesses symmetrical centerlattice. By fitting decay curves of Eu^(3+) of different concentrations, it is discovered that theluminescence changes from the first order decay to the second order decay while the concentrationsof Eu^(3+) are increased . It is observed by SEM that glass fiber shows smooth surface , low crystalgrowing rate , high density of fracture and shellfish veins of fracture obviously submits ditchform. Meanwhile, a series of mechanics parameters were measured and the spectral behaviors of theglass fiber in Eu doped ZnO-MgO-CdO-B_2O_3 were studied.
