ZHENG Chang-bin, YANG Gui-long, LI Shi-ming. Synthesis of Ultrafine Y<sub>2</sub>O<sub>3</sub>:Pr,Yb Nanoparticles by Femtosecond Pulsed Laser Ablation[J]. Chinese Journal of Luminescence, 2014,35(11): 1331-1335
ZHENG Chang-bin, YANG Gui-long, LI Shi-ming. Synthesis of Ultrafine Y<sub>2</sub>O<sub>3</sub>:Pr,Yb Nanoparticles by Femtosecond Pulsed Laser Ablation[J]. Chinese Journal of Luminescence, 2014,35(11): 1331-1335 DOI: 10.3788/fgxb20143511.1331.
nanoparticles were synthesized by femtosecond pulsed laser ablation method
and the up-conversion properties of the particles were investigated. The nanoparticles can be obtained under certain laser power intensity. With the increasing of laser intensity and pulse repetition frequency
the yield of the nanoparticles increases. The diameters of these spherical particles are smaller than 50 nm. An emission band centered at 510 nm can be observed in the emission spectrum under 976 nm excitation. The emission intensity increases with the amount of the nanoparticles.
关键词
激光烧蚀上转换发光稀土氧化物
Keywords
laser ablationup-conversionrare earth oxide
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