Photoluminescence study of Nd3+-doped Si-rich silica films

• Autorzy: Breard D. , Gourbilleau F. , Belarouci A. , Dufour C. , Rizk R.
• Języki publikacji: EN

Abstrakty

EN

Nd3+-doped silicon-rich silicon oxide thin films have been fabricated by reactive magnetron co-sputtering of a pure silica target topped with Nd2O3 chips. The incorporation of silicon excess in the films has been controlled by the hydrogen partial pressure PH2 introduced in the plasma. Photoluminescence experiments have been made at room temperature using a non resonant excitation with Nd3+ ions. The influences of Nd3+ content and PH2 have been studied to improve the Nd3+ emission. Photoluminescence spectra reveal an enhancement of the Nd3+ emission at 0.9 m and 1.1 m when silicon nanoclusters and Nd3+ are embedded in a SiO2 matrix.

Słowa kluczowe

EN

Nd; Si; nanoclusters Si; energy transfer

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Optica Applicata
• Rocznik: 2006
• Tom: Vol. 36, nr 2-3
• Strony: 187--192
• Opis fizyczny: Bibliogr. 7 poz.,

Twórcy

autor

Breard D.

autor

Gourbilleau F.

autor

Belarouci A.

autor

Dufour C.

autor

Rizk R.

• SIFCOM, 14050 Caen Cedex, UMR CNRS 6176, France

Bibliografia

• [1] GOURBILLEAU F., LEVALOIS M., DUFOUR C., VICENS J., RIZK R., Optimized conditions for an enhanced coupling rate between Er ions and Si nanoclusters for an improved 1.54-m emission, Journal of Applied Physics 95(7), 2004, pp. 3717–22.
• [2] SEO S.-Y., KIM M.-J., SHIN J.H., The Nd-nanocluster coupling strength and its effect in excitation/de-excitation of Nd3+ luminescence in Nd-doped silicon-rich silicon oxide, Applied Physics Letters 83(14), 2003, pp. 2778–80.
• [3] WATANABE K., TAMAOKA H., FUJII M., MORIWAKI K., HAYASHI S., Excitation of Nd3+ and Tm3+ by the energy transfer from Si nanocrystals, Physica E 13(2–4), 2002, pp. 1038–42.
• [4] CHAUSSERIE S., KHALFAOUI N., DUFOUR C., VICENS J., MARIE P., GOURBILLEAU F., Influence of temperature and hydrogen rate on silicon incorporation in silica films by reactive magnetron co-sputtering, Optical Materials 27(5), 2005, pp. 1026–30.
• [5] GOURBILLEAU F., DUFOUR C., LEVALOIS M., VICENS J., RIZK R., SADA C., ENRICHI F., BATTAGLIN G., Room-temperature 1.54 m photoluminescence from Er-doped Si-rich silica layers obtained by reactive magnetron sputtering, Journal of Applied Physics 94(6), 2003, pp. 3869–74.
• [6] AGARWAL A., TOMOZAWA M., Correlation of silica glass properties with the infrared spectra, Journal of Non-Crystalline Solids 209(1–2), 1997, pp. 166–74.
• [7] SANGWAL K., KUCHARCZYK W., Relationship between density and refractive index of inorganic solids, Journal of Physics D: Applied Physics 20(4), 1987, pp. 522–5.