Dual emission of Ce3+, Mn2+‐coactivated Ca3YNa(PO4)3F via energy transfer: a single component white/yellow‐emitting phosphor. (15th September 2016)

• Record Type: Journal Article
• Authors: Guan, Anxiang; Yao, Chunying; Wang, Guofang; Fu, Anjie; Zhou, Liya; Meng, Yingbin; Wang, Qiuping
• Is Part Of: Luminescence. Volume 32:Number 4(2017)
• Page Start: 529
• Page End: 534
• Publication Date: 2016-09-15
• Subjects: energy transfer -- luminescence -- optical properties -- phosphors; Luminescence -- Periodicals; Bioluminescence -- Periodicals; Chemiluminescence -- Periodicals; Luminescence -- Periodicals; 535.35
• DOI: 10.1002/bio.3208
• Languages: English
• ISSNs: 1522-7235

Abstract

Abstract: A series of Ce 3 +, Mn 2 + ‐coactivated Ca3 YNa(PO4 )3 F phosphors were synthesized via a traditional solid‐state reaction under a reductive atmosphere. X‐Ray powder diffraction was used to confirm that the crystal structure and diffraction peaks of Ce 3 + /Mn 2 + ‐doped samples matched well with the standard data. A spectral overlap between the emission band of Ce 3 + and the excitation band of Mn 2 + suggested the occurrence of energy transfer from Ce 3 + to Mn 2 + . With increasing Mn 2 + content, the emission intensities and lifetime values of the Ce 3 + emission for Ca3 YNa(PO4 )3 F:Ce 3 +, Mn 2 + phosphors linearly decrease, whereas the energy transfer efficiencies gradually increase to 89.35%. By adjusting the relative concentrations of Ce 3 + and Mn 2 +, the emission hues are tuned from blue to white and eventually to yellow. These results suggest that Ca3 YNa(PO4 )3 F:Ce 3 +, Mn 2 + phosphors have promising application as white‐emitting phosphors for near‐ultraviolet light‐emitting diodes.