A novel UV-emitting phosphor: Li6CaB3O8.5:Pb2+

Synthesis and photoluminescence properties of Pb2+ doped Li4CaB2O6

“…The emission band of Li 4 CaB 2 O 6 :Pb 2+ lies between 275 and 350 nm and is in the UV region. Due to no splitting or multiple peaks in the photoluminescence spectra, it is believed that the Pb 2+ [17] and Li 6 CaB 3 O 8.5 [18] was studied in detail by Wu et al Additionally, the photoluminescence properties of Pb 2+ in LiCaBO 3 [11] and Li 6 CaB 3 O 8.5 [12] was investigated in detail. As seen in Table 1, the emission band of LiCaBO 3 :Pb 2+ , Li 4 CaB 2 O 6 :Pb 2+ and Li 6 CaB 3 O 8.5 :Pb 2+ were observed at 296, 298 and 307 nm, respectively.…”

“…It is known that the luminescence intensities of Pb 2+ doped phosphors always depend on the doped Pb 2+ ions concentration [9,12,[19][20][21]. So, it has also investigated that the photoluminescence spectra of Li 4 CaB 2 O 6 with different Pb 2+ doping concentrations.…”

“…Up to now, the luminescence properties of the Pb 2+ ion in inorganic metal borates have been extensively investigated by the scientists [3][4][5][6][7][8][9][10][11][12]. In these borates, the absorption and emission spectra of Pb 2+ are in the near UV-Vis spectral region depending strongly on the site occupied by Pb 2+ ions, electronegativity of the cation and crystal structure of the host lattice [11,12]. The compound of Li 4 CaB 2 O 6 , an example of alkaline-earth borates, is characterized by having an association of BO 3 triangle, CaO 6 octahedra and (Li(I)O 4 tetrahedra/Li(II)O 5 polyhedra).…”

Vanadate Phosphors for Energy Efficient Lighting

“…Recently, the development of new methods for the synthesis of micro or nano phosphors may increase the probability for high effective rare-earth phosphors [39][40][41][42][43][44][45][46][47][48]. Solution combustion synthesis (SCS) has emerged as an attractive technique for the synthesis of high purity homogeneous and crystalline oxide powders at signifi cantly lower temperatures than the conventional synthesis method, because the starting materials which are used are homogeneously mixed in liquid phase and the impurities with low boiling points can easily get evaporated at high temperature generated instantly during exothermic reaction [49][50][51][52]. The main attractive features of SCS are that it is very simple, safe, cost-effective, and has the ability to produce materials with high purity and better homogeneity; also, it is energy and time saving.…”

Synthesis and Luminescent Properties of M2V2O7: Eu (M=Sr, Ba) Nanophosphors

“…Solution combustion synthesis (SCS) has emerged as an attractive technique for the synthesis of high purity homogeneous and crystalline oxide powders at significantly lower temperatures than the conventional synthesis method, because the starting raw materials are homogeneously mixed in liquid phase and the high temperature generated instantly by the exothermic radiation can volatilize low boiling point impurities [16][17][18][19]. The attractive features of SCS are its ability to synthesize materials with high purity, better homogeneity and high surface area in a single step.…”