Photoluminescence and Raman scattering in In0.53Ga0.47As/InP:Dy

Balint Podor; D. Vignaud; I. M. Tiginyanu; L. Csontos; V. V. Ursaki; V. P. Shontya

doi:10.1117/12.280418

26 August 1997 Photoluminescence and Raman scattering in In_0.53Ga_0.47As/InP:Dy

Balint Podor, D. Vignaud, I. M. Tiginyanu, L. Csontos, V. V. Ursaki, V. P. Shontya

Proceedings Volume 3182, Material Science and Material Properties for Infrared Optoelectronics; (1997) https://doi.org/10.1117/12.280418
Event: Material Science and Material Properties for Infrared Optoelectronics, 1996, Uzhgorod, Ukraine

Abstract

High purity In_0.53Ga_0.47As grown on InP by liquid phase epitaxy with small amounts of rare earth dysprosium (Dy) in the melt was investigated. The presence of Dy dramatically reduced the charge carrier and residual donor concentration, and shifted the low temperature photoluminescence peaks toward higher energies. Room temperature Raman spectra were also studied. The Raman shift of the GaAs-like longitudinal optical phonon band increased with the Dy content in the growth melt. The results were explained by the effect of gettering of unintentional donor impurities in the melt by Dy, as well as by the effect of strain modification in the layers due to the possible incorporation of Dy.

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Balint Podor, D. Vignaud, I. M. Tiginyanu, L. Csontos, V. V. Ursaki, and V. P. Shontya "Photoluminescence and Raman scattering in In_0.53Ga_0.47As/InP:Dy", Proc. SPIE 3182, Material Science and Material Properties for Infrared Optoelectronics, (26 August 1997); https://doi.org/10.1117/12.280418

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