The crystal-field potential at the Er3+ ion surrounded by six oxygen ions is expanded in terms of polynomials. After converting it into equivalent angular momentum operators, the Stark-splitting of the 4I15/2 ground state of the Er3+ ion is calculated. Influence of the change in the environment of the Er3+ ion on the shift of the energy levels is investigated and compared with the observed Er photoluminescence spectrum in a-Si:H. The scattering of the calculated energy levels by the structural fluctuation around the Er3+ ion is also compared with the linewidth of the component photoluminescence lines.
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L. R. Tessler, C. Piamonteze, M. C. M. Alves, and H. Tolentino: J. Non-Cryst. Solids, 266–269, 598 (2000).
M. Ishii and Y. Komukai: Appl. Phys. Lett., 79, 934 (2001).
D. M. B. P. Milori, I. J. Moraes, A. C. Hernandes, R. R. de Souza, M.S. Li, M. C. Terrile, and G. E. Barberis: Phys. Rev. B, 51, 3206 (1995).
H. Przybylinska, W. Jantsch, Y. S. Belevitch, M. Stepikhova, L. Palmetshofer, G. Hendorfer, A. Kozanecki, R. J. Wilson, and B. J. Sealy: Phys. Rev. B, 54, 2532 (1996).
J. D. Carey, J. F. Donegan, R. C. Barklie, F. Priolo, G. Franzo, and S. Coffa: Appl. Phys. Lett., 69, 3854 (1996).
D. E. Wortman, C. A. Morrison, and J. L. Bradshaw: J. Appl. Phys., 82, 2580 (1997).
M. T. Hutchings: Solid State Physics, Vol. 16, edited by F. Seitz and D. Turnbull (Academic Press, 1965) p. 227.
M. Kumeda, M. Takahashi, A. Morimoto, and T. Shimizu: Mat. Res. Soc. Symp. Proc. Vol. 862, A18.1 (2005).
H. Eyring, J. Wlater, and G. E. Kimball: Quantum Chemistry (John Wiley & Sons, Inc., 1944).
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Kumeda, M., Sekizawa, Y., Morimoto, A. et al. Environment of Er Doped in a-Si:H and Its Relation with Photoluminescence Spectra. MRS Online Proceedings Library 910, 602 (2005). https://doi.org/10.1557/PROC-0910-A06-02