PREPARATION AND PROPERTIES OF BULK GAXINL-XAS CRYSTALS

被引:32
作者
LEU, YT
THIEL, FA
SCHEIBER, H
RUBIN, JJ
MILLER, BI
BACHMANN, KJ
机构
[1] BELL TEL LABS INC,MURRAY HILL,NJ 07974
[2] BELL TEL LABS INC,HOLMDEL,NJ 07733
关键词
energy gap; III-V Alloys; photoluminescence; Zone leveling;
D O I
10.1007/BF02657085
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
The phase relations at the InAs/GaAs pseudo-binary and their implications regarding the growth of Ga In As crystals from the melt by gradient freezing and zone leveling are discussed. Homogeneous crystals have been grown for x > O.85 by gradient freezing. For compositions x ≤ 0.85 zone leveling is the only melt growth technique that results in macroscopically homogeneous crack-free crystals. However, compositional inhomogeneities on a microscopic scale are difficult to suppress in this range. The band gap of Gax In1-x As at 77K varies as Eg = 0.1+13+ 0.720×+0.3T5×2. © 1979 AIME.
引用
收藏
页码:663 / 674
页数:12
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