Synthesis of the long-persistence phosphor CaAl2O4:Eu2+, Dy3+, Nd3+ by combustion method and its luminescent properties.
Calcium aluminate phosphor co-doped Eu(2+), Dy(3+), Nd(3+) is prepared by the combustion method. We study systemically the influences of the quantity of mixed Dy(3+) ion, the quantity of flux H(3)BO(3), the differences in dispersing methods between magnetic stirring and ultrasonic dispersing and the combustion temperature on the long-persistence phosphor. The analytical results indicate that Dy(3+) ion improves the properties of the phosphors CaAl(2)O(4):Eu(2+), Nd(3+). The appropriate quantity of flux H(3)BO(3 )to( )reduce the forming temperature of the sample was determined. The monoclinic single phase of CaAl(2)O(4) formed at 500 degrees C and remained steady. The calcium aluminate co-doped Eu(2+), Dy(3+), Nd(3+) was synthesized by dispersal of the raw material using the ultrasonic method, and it had better optical properties.
Zhang
Bo
B
Hubei Key Laboratory for Catalysis and Material Science, College of Chemistry and Material Science, South-Central University for Nationalities, Wuhan, Hubei, People's Republic of China.
Zhao
Changliang
C
Chen
Donghua
D
D017607:Aluminum Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D001888:Boric Acids / Q000737:chemistry; D017610:Calcium Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D004419:Dysprosium / Q000737:chemistry*; D005063:Europium / Q000737:chemistry*; D049449:Luminescence; D008163:Luminescent Measurements; D009354:Neodymium / Q000737:chemistry*; D010316:Particle Size; D013499:Surface Properties
D017607:Aluminum Compounds; D001888:Boric Acids; D017610:Calcium Compounds; C035219:calcium aluminate; D004419:Dysprosium; D009354:Neodymium; D005063:Europium