Direct generation of core/shell nanoparticles from double-pulse laser ablation in a background gas

作者：Jo Young Kyong^*; Wen Sy Bor

来源：Journal of Physics D: Applied Physics , 2011, 44(30): 305301.

DOI：10.1088/0022-3727/44/30/305301

In this study, a double-pulse laser ablation scheme is proposed to generate core/shell nanoparticles (CS-NPs). Compared with other existing methods for the generation of CS-NPs, the new scheme figures with its simple and in situ approach and can be applied to a wider variety of materials. Several types of CS-NPs are successfully generated with this new scheme (i.e. Sn/glass, Zn/glass, Zn/Si, Ge/Si, Cu/Zn CS-NPs). Four key factors affecting the generation of CS-NPs with this new scheme are also examined, namely (a) surface tensions of materials constructing the CS-NPs an

• 出版日期2011-8-3