Molecular Beam Epitaxy of Cubic Group III-Nitrides on Free-Standing 3C-SiC Substrates

Author:

As Donat J.1,Potthast S.1,Schörmann J.1,Li S.F.1,Lischka K.1,Nagasawa Hiroyuki2,Abe Masayuki3

Affiliation:

1. University of Paderborn

2. Hoya Corporation

3. HOYA Advanced Semiconductor Technologies Co., Ltd.

Abstract

Cubic GaN, AlxGa1-xN/GaN and InyGa1-yN/GaN multiple quantum well (MQW) layers were grown by plasma assisted molecular beam epitaxy on 200 &m thick free standing 3C-SiC substrates. The influence of the surface roughness of the 3C-SiC substrates and the influence of metal coverage during growth are discussed. Optimum growth conditions of c-III nitrides exist, when a one monolayer Ga coverage is formed at the growing surface. The improvement of the structural properties of cubic III-nitride layers and multilayers grown on 3C-SiC substrates is demonstrated by 1 μm thick c-GaN layers with a minimum x-ray rocking curve width of 16 arcmin, and by c-AlGaN/GaN and c-InGaN/GaN MQWs which showed up to five satellite peaks in X-ray diffraction, respectively.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Reference11 articles.

1. D.J. As, in Optoelectronic Properties of Semiconductors and Superlattices, series editor M.O. Manasreh, (Taylor & Francis Books, Inc., New York, 2003), Vol. 19 chapter 9, pp.323-450.

2. HOYA Advanced Semiconductor Technologies Co., Ltd., 1-17-16 Tanashioda, Sagamihara, Kanagawa 229-1125, Japan, Home page: URL: http: /www. hast. co. jp.

3. D.J. As, D. Schikora, and K. Lischka: phys. stat. sol. (c) 0 (2003), p.1607.

4. J. Schörmann, S. Potthast, M. Schnietz, S.F. Li, D.J. As, and K. Lischka: phys. stat. sol. (c) (2005), in Proc. of ICNS-6, Bremen (2005).

5. A. Nagayama, H. Sawada, E. Takuma, R. Katayama, K. Onabe, H. Ichinose, and Y. Shiraki: Inst. Phys. Conf. Ser. 170 (2002), p.749.

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