期刊
CHINESE PHYSICS B
卷 31, 期 7, 页码 -出版社
IOP Publishing Ltd
DOI: 10.1088/1674-1056/ac5399
关键词
Gd2O3; nanoparticles; luminescence; laser ablation in liquid
Monoclinic Gd2O3:Er3+ nanoparticles with up-conversion and down-conversion luminescence properties were successfully synthesized, and tunable luminescence was achieved. The nanoparticles exhibited low cytotoxicity and strong fluorescence in cells, making them promising candidates for bio-imaging or other fields that require controllable fluorescence.
Multifunctional luminescent materials are attracting attention nowadays. In this work, monoclinic Gd2O3:Er3+ nanoparticles, which possess up-conversion luminescence and down-conversion luminescence properties, were successfully synthesized by laser ablation in liquid (LAL) technique. Up-conversion luminescence and down-conversion luminescence of monoclinic Gd2O3:Er3+ nanoparticles were got under the excitation of 980 nm and 379 nm, respectively. In addition, tunable luminescence was got. Furthermore, the cytotoxicity of the nanoparticles is low and the fluorescence of the nanoparticles in cell is also strong enough. The results indicate that the Gd2O3:Er3+ nanoparticles synthesized by LAL technique are promising candidates for bio-imaging or other fields that require controllable fluorescence.
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