LOW-TEMPERATURE GROWTH OF ALGAP AND GAP ON SI SUBSTRATES BY ATOMIC LAYER EPITAXY

被引:11
作者
GONG, JR [1 ]
NAKAMURA, S [1 ]
LEONARD, M [1 ]
BEDAIR, SM [1 ]
ELMASRY, NA [1 ]
机构
[1] N CAROLINA STATE UNIV,DEPT ELECT & COMP ENGN,RALEIGH,NC 27695
关键词
ALE; MOCVD; ALGAP AND GAP ON SI HETEROEPITAXY; TEM;
D O I
10.1007/BF02684204
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
AlGaP and GaP films were deposited on the (100) Si substrates by atomic layer epitaxy (ALE) in the temperature range between 450 and 600-degrees-C. Under optimum growth conditions, the growth of GaP and AlGaP was observed to proceed in a two-dimensional (2-D) fashion in the initial growth stages. These ALE-grown films have better surface morphology when compared with the corresponding MOCVD-grown films. With an AlGaP buffer layer grown on Si, the subsequent growth of GaAs on the AlGaP-coated Si substrates tends to proceed as 2-D growth. This avoids island growth and the two-step growth process currently used.
引用
收藏
页码:965 / 970
页数:6
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