Photoluminescent Properties of ABaPO4:Eu (A=Na, K) Phosphors Prepared by the Combustion-Assisted Synthesis Method
Blue-emitting phosphors ABaPO4:Eu (A=Na, K) are synthesized by the combustion-assisted synthesis method. The formation of single ABaPO4 (A=Na, K) phases has been confirmed by X-ray powder diffraction (XRD). X-ray photoelectron spectroscopy (XPS) is used to investigate europium valence in the ABaPO4:Eu (A=Na, K) samples. Evidence is found that the ABaPO4:Eu (A=Na, K) samples prepared in this paper exhibit a mixed-valence europium state (Eu3+ and Eu2+). Photoluminescence (PL) results show that the NaBaPO4:Eu and KaBaPO4:Eu phosphors emit a strong blue light under UV excitation.
No Supplementary Data
No Article Media
Document Type: Research Article
Affiliations: Hubei Key Laboratory for Catalysis and Material Science, College of Chemistry and Material Science, South-Central University for Nationalities, Wuhan 430074, China
Publication date: May 1, 2009