The present invention relates to a method for producing europium activated yttrium
gadolinium borate phosphors and a product produced by the method. The chemical
formula of said phosphors is (Y1-x-y-zEuxGdyMz)BO3,
wherein: 0.01x0.01, 0y0.5, M=Ca, Sr, Ba or Mg,
0z0.1. The method comprises: mixing a yttrium source, an europium
source, a gadolinium source, a boron source and an M source to produce an aqueous
solution in a microwave system; placing the aqueous solution into a microwave system,
and making the solution reacting under the condition of condensation cycling and
stirring to produce a sol; heating the sol in a microwave system to produce a gel;
drying, baking, washing and collecting the gel to produce the product. The method
of the present invention can greatly short the production period and improve the
production efficiency. The europium activated yttrium gadolinium borate phosphor
particles is of a particle size as fine as 80 nm and has good uniformity and emitting performance.
