Red europium sodium borate luminescent crystal material and preparation method and application thereof

The invention belongs to the technical field of rare earth luminescent material and discloses a red europium sodium borate luminescent crystal material and a preparation method and application thereof. The technical scheme is mainly characterized in that a chemical formula is Na3EuB8O15, a structure of the material belongs to a triclinic system, a space group is P-1, unit cell parameters include that a is equal to 6.2861(5), b is equal to 7.5366(6), c is equal to 13.4963(11), alpha is equal to 90.5470(10) DEG C, beta is equal to 100.6670(10) DEG C, gamma is equal to 113.4890(10) DEG C, Z is equal to 2, and V is equal to 573.81(8)3. The preparation method includes: adopting a high-temperature molten-salt method for synthesizing europium sodium borate single crystal, putting completely ground mixed raw materials in a platinum crucible, putting in a chamber furnace, heating for complete fusion, cooling slowly to the room temperature to obtain the single crystal of the compound. The red europium sodium borate lum