PRODUCTION OF GREEN LUMINOUS FLUORESCENT MATERIAL

摘要

The green light emitting fluorescent material of ZnO:Zn is manufactured by (a) mixing 100 wt. pts. of a high purity zinc oxide (ZnO, 99.99 %) with 5-100 PPM of an aq. soln. of Zn(NO3)2 obtd. by dissolving Zn powder into HNO3, (b) drying the mixture in the dryer, and (c) firing the dryed ZnO in a quartz or alumina pot under the reduction atmosphere of 5 % H2 + 95 % N2 gas at 800-1000 deg.C for 0.5-2 hr. The fluorescent material has an excellent emitting luminance and luminous characteristic.