Synthesis and luminescence properties of Eu2+-activated phosphor Ba3LaK(PO4)3F for n-UV white-LEDs. (24th November 2016)

• Record Type: Journal Article
• Authors: Ma, Xiaoxue; Mei, Lefu; Liu, Haikun; Liao, Libing; Nie, Kun; Liu, Yuqin; Li, Zhaohui
• Is Part Of: Polyhedron. Volume 119(2016)
• Page Start: 223
• Page End: 226
• Publication Date: 2016-11-24
• Subjects: Phosphors -- Luminescence -- Photoluminescence properties -- X-ray -- Apatite; Chemistry, Inorganic -- Periodicals; Chimie inorganique -- Périodiques; Organometaalverbindingen; Anorganische chemie; 546.05
• DOI: 10.1016/j.poly.2016.09.001
• Languages: English
• ISSNs: 0277-5387

Abstract

Graphical abstract: The as-prepared phosphor Ba3 LaK(PO4 )3 F:Eu 2+ phosphor can act as an appropriate candidate of the blue phosphor. Abstract: The simple high-temperature solid-state route was adopted to synthesize a series of related Ba3 LaK(PO4 )3 F: x Eu 2+ (BLKPF: x Eu 2+ ) blue phosphors. The photoluminescence (PL) and diffuse reflection spectra have been investigated in detail. These phosphors which can be well excited by the 388 nm near ultraviolet light, produce the emitted blue light peaks located at about 460 nm. The critical Eu 2+ concentration quenching mechanism was ascribed to the dipole–dipole interaction, and the optimum concentration was eventually proved to be 0.1 mol. All above results indicate that Ba3 LaK(PO4 )3 F: x Eu 2+ phosphor can act as an appropriate candidate of the blue phosphor in the future.