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Growth and Characterization of InGaN/GaN Heterostructures Using Plasma-Assisted Molecular Beam Epitaxy

Published online by Cambridge University Press:  10 February 2011

K. H. Shim ,
S. E. Hong ,
K. H. Kim ,
M. C. Paek  and
K. I Cho
K. H. Shim
Affiliation:
Wide Band Gap Semiconductor Team, Microelectronics Technology Research Laboratory, Electronics and Telecommunications Research Institute161 Kajung-Dong, Yusong-Gu, Taejon, Korea 305–350
S. E. Hong
Affiliation:
Wide Band Gap Semiconductor Team, Microelectronics Technology Research Laboratory, Electronics and Telecommunications Research Institute161 Kajung-Dong, Yusong-Gu, Taejon, Korea 305–350
K. H. Kim
Affiliation:
Wide Band Gap Semiconductor Team, Microelectronics Technology Research Laboratory, Electronics and Telecommunications Research Institute161 Kajung-Dong, Yusong-Gu, Taejon, Korea 305–350
M. C. Paek
Affiliation:
Wide Band Gap Semiconductor Team, Microelectronics Technology Research Laboratory, Electronics and Telecommunications Research Institute161 Kajung-Dong, Yusong-Gu, Taejon, Korea 305–350
K. I Cho
Affiliation:
Wide Band Gap Semiconductor Team, Microelectronics Technology Research Laboratory, Electronics and Telecommunications Research Institute161 Kajung-Dong, Yusong-Gu, Taejon, Korea 305–350
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Abstract

Structural and optical properties of In0.2Ga0.8N/GaN heterostructures grown by plasma-assisted molecular beam epitaxy have been investigated as a function of rf plasma power. Indium incorporation resulted in the higher rf power level suppressing 3D island growth with reduced introduction of defects in In0.2Ga0 8N in comparison with GaN. Sharp morphology at interfaces and strong transitions in photoluminescence reveal the optimum rf power around 400 W in our experimental set up for the growth of In0.2Ga0.8N/GaN heterostructures. Our experimental observations suggest that the presence of indium on surface modulates the rate of plasma stimulated desorption and diffusion, and reduces the formation of damaged subsurface.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 572: Symposium Y – Wide-Bandgap Semiconductors for High-Power, High Frequency… , 1999 , 383
Copyright
Copyright © Materials Research Society 1999

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References

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