CAJ | 학술논문

利用飞秒激光烧蚀方法合成了Y2 O3∶Pr3+,Yb3+纳米颗粒并对其上转换发光性质进行了研究。对合成产物的形貌分析显示,在一定的激光烧蚀功率密度下,即可制备出小尺寸的纳米颗粒,提高激光功率密度可以得到更高的纳米颗粒产量,所获得的纳米颗粒尺寸小于50 nm。荧光测试结果表明,Y2 O3∶Pr3+,Yb3+纳米颗粒具有510 nm为中心的上转换发光带,上转换发光随纳米颗粒数量的增加而增强。
이용비초격광소식방법합성료Y2 O3∶Pr3+,Yb3+납미과립병대기상전환발광성질진행료연구。대합성산물적형모분석현시,재일정적격광소식공솔밀도하,즉가제비출소척촌적납미과립,제고격광공솔밀도가이득도경고적납미과립산량,소획득적납미과립척촌소우50 nm。형광측시결과표명,Y2 O3∶Pr3+,Yb3+납미과립구유510 nm위중심적상전환발광대,상전환발광수납미과립수량적증가이증강。
Y2O3∶Pr3+,Yb3+ 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 par-ticles are smaller than 50 nm. An emission band centered at 510 nm can be observed in the emis-sion spectrum under 976 nm excitation. The emission intensity increases with the amount of the nanoparticles.