中国物理B ›› 2009, Vol. 18 ›› Issue (7): 2858-2863.doi: 10.1088/1674-1056/18/7/039

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The photosensitive effect of Ce on the precipitation of Ag nanoparticles induced by femtosecond laser in silicate glass

戴晔1, 邱建荣2   

  1. (1)Department of Physics, Shanghai University, Shanghai 200444, China; (2)State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027, China
  • 收稿日期:2008-11-09 修回日期:2008-12-26 出版日期:2009-07-20 发布日期:2009-07-20
  • 基金资助:
    Project supported by the National Basic Research Program of China (Grant No 2006CB806000b) and the Shanghai Leading Academic Discipline Project (Grant No S30105).

The photosensitive effect of Ce on the precipitation of Ag nanoparticles induced by femtosecond laser in silicate glass

Dai Ye(戴晔)a)† and Qiu Jian-Rong(邱建荣)b)   

  1. a Department of Physics, Shanghai University, Shanghai 200444, China; b State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027, China
  • Received:2008-11-09 Revised:2008-12-26 Online:2009-07-20 Published:2009-07-20
  • Supported by:
    Project supported by the National Basic Research Program of China (Grant No 2006CB806000b) and the Shanghai Leading Academic Discipline Project (Grant No S30105).

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摘要： This paper studies the photosensitive effect of cerium oxide on the precipitation of Ag nanoparticles after femtosecond laser irradiating into silicate glass and successive annealing. Spectroscopy analysis and diffraction efficiency measurements show that the introduction of cerium oxide may increase the concentration of Ag atoms in the femtosecond laser-irradiated regions resulting from the photoreduction reaction Ce3+ + Ag+ \to Ce3+ + Ag0 via multiphoton excitation. These results promote the aggregation of Ag nanoparticles during the annealing process. It is also found that different concentrations of cerium oxide may influence the Ag nanoparticle precipitation in the corresponding glass.

Abstract: This paper studies the photosensitive effect of cerium oxide on the precipitation of Ag nanoparticles after femtosecond laser irradiating into silicate glass and successive annealing. Spectroscopy analysis and diffraction efficiency measurements show that the introduction of cerium oxide may increase the concentration of Ag atoms in the femtosecond laser-irradiated regions resulting from the photoreduction reaction Ce3+ + Ag+ $\rightarrow$ Ce3+ + Ag0 via multiphoton excitation. These results promote the aggregation of Ag nanoparticles during the annealing process. It is also found that different concentrations of cerium oxide may influence the Ag nanoparticle precipitation in the corresponding glass.

Key words: femtosecond laser, glass, photosensitive effect

中图分类号:  (Phase equilibria)

  • 64.75.-g
61.46.Df (Structure of nanocrystals and nanoparticles ("colloidal" quantum dots but not gate-isolated embedded quantum dots)) 61.80.Ba (Ultraviolet, visible, and infrared radiation effects (including laser radiation)) 78.47.-p (Spectroscopy of solid state dynamics) 82.50.Pt (Multiphoton processes) 81.40.Gh (Other heat and thermomechanical treatments)