Enhanced red emission in CaTiO3:Pr3+,Bi3+,B3+phosphors

✍ Scribed by Tang, Wanjun ;Chen, Donghua

• Book ID: 105365034
• Publisher: John Wiley and Sons
• Year: 2009
• Tongue: English
• Weight: 804 KB
• Volume: 206
• Category: Article
• ISSN: 0031-8965
• DOI: 10.1002/pssa.200824137

✦ Synopsis

Abstract

CaTiO~3~:Pr^3+^,Bi^3+^,B^3+^ red phosphor particles were prepared by a peroxide‐based route. X‐ray diffraction (XRD), scanning electron microscopy (SEM) and photoluminescence (PL) were utilized to characterize the resulting phosphors. Bi^3+^ codoping improves the excitation properties, especially under near‐UV (370–400 nm) light excitation. A small amount of B~2~O~3~ can act as a flux to accelerate the formation of CaTiO~3~ host lattice and improve the PL properties of CaTiO~3~:Pr^3+^,Bi^3+^ phosphor. Under UV excitation, the strongest red emission is obtained from CaTiO~3~:0.05%Pr^3+^, 1.0%Bi^3+^,0.3B^3+^. (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)