Synthesis, electronic structure and photoluminescence properties of Ba2BiV3O11: Eu3+ red phosphor. (September 2016)

• Record Type: Journal Article
• Authors: Zhao, Jin; Guo, Chongfeng; Li, Ting; Su, Xiangying; Zhang, Niumiao; Chen, Jiayu
• Is Part Of: Dyes and pigments. Volume 132(2016)
• Page Start: 159
• Page End: 166
• Publication Date: 2016-09
• Subjects: Rare-earth doping -- Red phosphors -- Optical properties -- LEDs; Dyes and dyeing -- Periodicals; Pigments -- Periodicals; 667.2
• DOI: 10.1016/j.dyepig.2016.04.052
• Languages: English
• ISSNs: 0143-7208

Abstract

Abstract: Eu 3+ -activated Ba2 BiV3 O11 red-emitting phosphors have been successfully synthesized by the sol–gel method. The electronic structure of Ba2 BiV3 O11 host was estimated by density functional theory (DFT) calculation. The structure and phase purity of the samples were characterized by powder X-ray diffraction (XRD), and their photoluminescence (PL) spectra, decay curves of 5 D0 → 7 F2 transitions, absorption spectra, and the Commission International de I'Eclairage (CIE) color coordinates were also investigated. The thermal stabilities of the phosphors were studied using the dependence of the luminescence intensities on temperature, and thermal activation energy was also determined. The results demonstrated that Ba2 BiV3 O11 : Eu 3+ was a potential red-emitting phosphor for n-UV-based white light-emitting diodes (w-LEDs). Graphical abstract: Band structure (a) and the crystal structure (b) of Ba2 BiV3 O11 as well as PL spectrum of Ba2 BiV3 O11 : 0.6Eu 3+ with its CIE coordinates (c). Highlights: Ba2 BiV3 O11 : Eu 3+ phosphors were prepared by the sol–gel method. The electronic structure of Ba2 BiV3 O11 was estimated by density functional theory. Ba2 BiV3 O11 : Eu 3+ can be excited at 394 and 465 nm and emit red light.