A novel red emitting phosphor LiCaPO4:Eu3+ was synthesized by the high temperature solid state reaction method,and the effects of Eu3+ content,R+ and Cl-on the luminescent properties of the phosphor were investigated.LiCaPO4:Eu3+ phosphor presents several emission peaks under 399 nm excitation,which correspond to the 5D0→7FJ(J=0,1,2,3,4) transition of Eu3+,respectively,and the highest emission is located at 612 nm.At 612 nm emission,the excitation spectrum contains 200-350 nm and 350-450 nm two ...