The photosensitive effect of Ce on the precipitation of Ag nanoparticles induced by femtosecond laser in silicate glass |
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Authors: | Dai Ye and Qiu Jian-Rong |
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Institution: | Department of Physics, Shanghai University, Shanghai 200444, China; State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027, China |
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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+ \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. |
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Keywords: | femtosecond laser glass photosensitive effect |
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