Synthesis of a new NASICON-type blue luminescent material

Abnormal blue-shift of Eu2+-activated calcium zirconium phosphates CaZr4(PO4)6

“…1-100 mol% with respect to Ca), which is consistent with the fact that the ionic radius of Eu 2+ (r = 1.17 Å, CN = 6) is significantly larger than that of Ca 2+ (r = 1.00 Å, CN = 6) [19]. The CaZr 4 (PO 4 ) 6 and EuZr 4 (PO 4 ) 6 are isostructural with trigonal crystal system [20], from which the solid-solution between CaZr 4 (PO 4 ) 6 -EuZr 4 (PO 4 ) 6 can be fully understood. Fig.…”

“…As is well known, the emission wavelength positions of Eu 2+ strongly depends on the coordination environment and Eu 2+ concentration. Since there are two different cation sites Ca(1) 3a and Ca(2) 3b sites in CaZr 4 (PO 4 ) 6 [20], and therefore two emission bands are expected. As shown in Fig.…”

Combustion synthesis and luminescence investigation of Na3Al2(PO4)3:RE (RE = Ce3+, Eu3+ and Mn2+) phosphor

“…Beside this to investigate the luminescent mechanism of NASI-CON, He et al [6] reported the PL properties of un-doped and doped-NASICON materials. Hirayama et al [7] and Masui et al [12] reported Eu 2+ emission in A 0.5 Zr 2 (PO 4 ) 3 phors with the NASICON structure. Mouline et al [13] reported the copper(I) and manganese(II) luminescence in NASICON-type structure Cu I 0.5 Mn II 0.25 Zr 2 (PO 4 ) 3 , which crystallizes in the rhombohedral (hexagonal cell) system with the efficient energy transfer from Cu + → Mn 2+ site.…”

A Novel Facile Room Temperature Chemical Lithiation for Reduction of Eu3+ in NASICON Crystal Structure

“…Traditionally, high temperature and high vacuum or reducing atmosphere condition are necessary for synthesis Eu 2+ -doped inorganic solid compounds. [3][4][5][6] Recently, the reduction of Eu 3+ ions to Eu 2+ ions in inorganic crystal structure was successive achieved through facile reduction via mixed solvent of oleic acid/hexadecylamine hydrothermal process or electrochemical lithium insertions. [7,8] color changes from orange- Since the first report on the Na + ion super ionic conductors (NASICON) type MZr 2 (PO 4 ) 3 in 1967, [9] many related zirconium phosphates have been extensively studied including the luminescence properties.…”

“…[7,8] color changes from orange- Since the first report on the Na + ion super ionic conductors (NASICON) type MZr 2 (PO 4 ) 3 in 1967, [9] many related zirconium phosphates have been extensively studied including the luminescence properties. [5][6][7][10][11][12][13] In typical NASICON MZr 2 (PO 4 ) 3 crystal structure, three-dimensional (3D) [Zr 2 (PO 4 …”