The influences of the flux KCl or KF on the XRD patterns, cell parameters, crystal morphology, and spectral properties of the phosphor LaMgB_5O_(10)∶Ce^(3+), Mn^(2+) are studied. The results indicate that as 4.2%, 8.6%, 12.8% KCl and 5.3%, 10.5% KF are added individually into the phosphor (La_(0.85)Ce_(0.15)) (Mg_(0.9)Mn_(0.1)) B_5O_(10), some peaks of the XRD patterns are intensified and cell volumes are decreased. A small amount of Cu mono-crystal typed phase appears as more than 5% KCl is added. There are six hexagonal crystal-faces and eight triangular crystal-faces attributed to the {100} and {111} respectively. When 15% KCl is added into the phosphor, multi-faced regular crystals are formed and the crystal self-regulation appears. The emission intensity of 5d→4f ((()~2F_(5/2),) (()~2F_(7/2))) of Ce^(3+) and (()~4G→()~6S) of Mn^(2+) increases up 3.41 and 2.36 times respectively.
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.
