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Incorporation Of Er Into GaN By in-situ Doping During Halide Vapor Phase Epitaxy

Published online by Cambridge University Press:  10 February 2011

Rong Zhang  and
T. F. Kuech
Rong Zhang
Affiliation:
Department of Chemical Engineering, University of Wisconsin, Madison, WI 53706
T. F. Kuech
Affiliation:
Department of Chemical Engineering, University of Wisconsin, Madison, WI 53706
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Abstract

The incorporation of Er into GaN by in-situ doping during halide vapor phase epitaxy has been investigated. The NH3, HCl, metallic Ga and Er were used as source materials, while N2 was employed as a carrier gas. The GaN:Er films were obtained at different Ga/Er source temperatures. The SIMS analysis shows that the steady state Er doping concentration can be as high as 2×1018 cm−3. All in-situ Er-doped samples luminescence at 1.54 μm due to the 4I13/2 → 4I15/2 transition of Er3+ at both low (11K) and room temperature. The higher the Ga/Er boat temperature, the stronger the 1.54 μm luminescence, implying a higher incorporation rate of Er into the GaN. The 4I11/2 → 4I15/2 transition luminescence, centered around 980 nm, can also be detected at both low and room temperature. The broad-spectrum PL measurements exhibited sharp bandedge luminescence without the presence of the yellow luminescence band.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 512: Symposium F – Wide Bandgap Semiconductors for High Power, High Frequency , 1998 , 327
Copyright
Copyright © Materials Research Society 1998

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References

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