A novel upconversion luminescence agent which could emit five upconversion fluorescent peaks with wavelengths all below 387 nm under excitation of 488 nm visible light was synthesized.

• 合成了一种新型含有稀土金属Er的上转光剂,此上转光剂在488nm可见光的激发下,可产生5个波长均小于387nm的上转换紫外发射峰。