LiCaBO3:Eu3+ phosphor was synthesized by high solid-state reaction method,and its luminescent characteristics were investigated. The emission and excitation spectra of LiCaBO3:Eu3+ phosphors exhibited that the phosphors could be effectively excited by near ultraviolet(400 nm) and blue(470 nm) light,and emitted red light. The effect of Eu3+ concentration on the emission spectrum of LiCaBO3:Eu3+ phosphor was studied. The results showed that the emission intensity increased with increasing Eu3+ concentration,and then decreased because of concentration quenching. It reached the maximum at 3mol.% Eu3+,and the concentration self-quenching mechanism was the d-d interaction according to the Dexter theory. Under the conditions of charge compensator Li+,Na+ or K+ incorporated in LiCaBO3,the emission intensities of LiCaBO3:Eu3+ phosphor were enhanced.
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