Abstract

Ag-MgF_(2) cermet films with different Ag fractions were prepared by vacuum evaporation. The microstructure of the films was examined by Raman scattering technique. The surface-enhanced Raman spectrum for MgF_(2) molecules in the cermet film strongly suggests the existence of Ag nanoparticles dispersed in MgF_(2) matrix. The intensities of the Raman spectra of Ag-MgF_(2) cermet films increase with Ag fraction. The enhancement of Raman scattering disappears when Ag content reaches wt.20%. The analyses with the transmission electron microscopy showed that Ag-MgF_(2) cermet films are mainly composed of amorphous MgF_(2) matrix with embedded faced-center-cubic Ag nanoparticles. It suggests that the percolation threshold should be around wt.20% of Ag content.

© 2005 Chinese Optics Letters

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2003 (1)

Z. Q. Sun, D. M. Sun, and T. N. Ruan, Vacuum. 68, 155 (2003).

2000 (1)

D. Dalacu and L. Martinu, J. Appl. Phys. 87, 228 (2000).

1999 (4)

Z. Q. Sun, D. M. Sun, A. X. Li, and Z. Y. Xu, Vacuum. 52, 243 (1999).

D. M. Sun, Z. Q. Sun, A. X. Li, and Z. Y. Xu, Vacuum. 52, 383 (1999).

Z. Q. Sun, D. M. Sun, A. X. Li, and Z. Y. Xu, Chinese Phys. Lett. 16, 389 (1999).

G. Katumba and L. Olumekor, J. Mater. Sci. 34, 6041 (1999).

1989 (2)

1985 (1)

D. Evans, Phys. Rev. B. 32, 4169 (1985).

1979 (1)

C. G. Granqvist, J. Appl. Phys. 50, 2916 (1979).

Boivin, G.

Chandonnet, A.

Cockayne, P. J. H.

Collins, R. E.

Dalacu, D.

D. Dalacu and L. Martinu, J. Appl. Phys. 87, 228 (2000).

Evans, D.

D. Evans, Phys. Rev. B. 32, 4169 (1985).

Gajdardziska-Josifovaka, M.

Granqvist, C. G.

C. G. Granqvist, J. Appl. Phys. 50, 2916 (1979).

Katumba, G.

G. Katumba and L. Olumekor, J. Mater. Sci. 34, 6041 (1999).

Li, A. X.

Z. Q. Sun, D. M. Sun, A. X. Li, and Z. Y. Xu, Vacuum. 52, 243 (1999).

D. M. Sun, Z. Q. Sun, A. X. Li, and Z. Y. Xu, Vacuum. 52, 383 (1999).

Z. Q. Sun, D. M. Sun, A. X. Li, and Z. Y. Xu, Chinese Phys. Lett. 16, 389 (1999).

Martinu, L.

D. Dalacu and L. Martinu, J. Appl. Phys. 87, 228 (2000).

McPhedran, R. C.

Mokenzie, D. R.

Olumekor, L.

G. Katumba and L. Olumekor, J. Mater. Sci. 34, 6041 (1999).

Ruan, T. N.

Z. Q. Sun, D. M. Sun, and T. N. Ruan, Vacuum. 68, 155 (2003).

Sun, D. M.

Z. Q. Sun, D. M. Sun, and T. N. Ruan, Vacuum. 68, 155 (2003).

D. M. Sun, Z. Q. Sun, A. X. Li, and Z. Y. Xu, Vacuum. 52, 383 (1999).

Z. Q. Sun, D. M. Sun, A. X. Li, and Z. Y. Xu, Chinese Phys. Lett. 16, 389 (1999).

Z. Q. Sun, D. M. Sun, A. X. Li, and Z. Y. Xu, Vacuum. 52, 243 (1999).

Sun, Z. Q.

Z. Q. Sun, D. M. Sun, and T. N. Ruan, Vacuum. 68, 155 (2003).

Z. Q. Sun, D. M. Sun, A. X. Li, and Z. Y. Xu, Chinese Phys. Lett. 16, 389 (1999).

D. M. Sun, Z. Q. Sun, A. X. Li, and Z. Y. Xu, Vacuum. 52, 383 (1999).

Z. Q. Sun, D. M. Sun, A. X. Li, and Z. Y. Xu, Vacuum. 52, 243 (1999).

Xu, Z. Y.

Z. Q. Sun, D. M. Sun, A. X. Li, and Z. Y. Xu, Vacuum. 52, 243 (1999).

D. M. Sun, Z. Q. Sun, A. X. Li, and Z. Y. Xu, Vacuum. 52, 383 (1999).

Z. Q. Sun, D. M. Sun, A. X. Li, and Z. Y. Xu, Chinese Phys. Lett. 16, 389 (1999).

Appl. Opt. (2)

Chinese Phys. Lett. (1)

Z. Q. Sun, D. M. Sun, A. X. Li, and Z. Y. Xu, Chinese Phys. Lett. 16, 389 (1999).

J. Appl. Phys. (2)

C. G. Granqvist, J. Appl. Phys. 50, 2916 (1979).

D. Dalacu and L. Martinu, J. Appl. Phys. 87, 228 (2000).

J. Mater. Sci. (1)

G. Katumba and L. Olumekor, J. Mater. Sci. 34, 6041 (1999).

Phys. Rev. B. (1)

D. Evans, Phys. Rev. B. 32, 4169 (1985).

Vacuum. (3)

Z. Q. Sun, D. M. Sun, and T. N. Ruan, Vacuum. 68, 155 (2003).

Z. Q. Sun, D. M. Sun, A. X. Li, and Z. Y. Xu, Vacuum. 52, 243 (1999).

D. M. Sun, Z. Q. Sun, A. X. Li, and Z. Y. Xu, Vacuum. 52, 383 (1999).

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