Combustion synthesis and optical properties of Oxy-borate phosphors YCa4O(BO3)3:RE3+ (RE=Eu3+, Tb3+) under UV, VUV excitation

VUV Photoluminescence of YCa4O(BO3)3: Eu3+ and YCa4O(BO3)3: Tb3+ for PDPs applications. [Display omitted] •Inorganic Oxy-borate phosphors YCa4O(BO3)3:Eu3+,Tb3+ was synthesized by novel solution combustion synthesis.•This single host produces efficient and intense Red and Green color for display applications.•Good agreement with CIE co-ordinates as prescribes by NTCL, for flat panel, PDP display color.•Synthesized materials were characterized using powder XRD, FE-SEM, UV and VUV Spectophotometer. The inorganic Oxy-borate host phosphors YCa4O(BO3)3:RE3+ (RE=Eu3+,Tb3+) were synthesized by a novel solution combustion technique. The synthesis is based on the exothermic reaction between the fuel (Urea) and Oxidizer (Ammonium nitrate). The heat generated in reaction is use for auto combustion of precursors. The structures of the prepared samples were confirmed by powder XRD technique. The photoluminescence properties of the powder samples were investigated under UV and VUV excitation; “The phosphor YCa4O(BO3)3:Eu3+and YCa4O(BO3)3:Tb3+ shows strong absorption in UV and VUV region and exhibits intense red and green emission upon excited by 254nm UV and 147nm VUV radiation”.