Growth and Optical Properties of Ge1-xSnx Alloy Thin Films with a High Sn Content

被引:6
作者
Zaima, Shigeaki [1 ]
Nakatsuka, Osamu [1 ]
Nakamura, Marika [1 ]
Takeuchi, Wakana [1 ]
Shimura, Yosuke [1 ]
Taoka, Noriyuki [1 ]
机构
[1] Nagoya Univ, Grad Sch Engn, Dept Crystalline Mat Sci, Chikusa Ku, Nagoya, Aichi 4648603, Japan
来源
SIGE, GE, AND RELATED COMPOUNDS 5: MATERIALS, PROCESSING, AND DEVICES | 2012年 / 50卷 / 09期
关键词
BAND-STRUCTURE; BUFFER LAYERS; GE; GAP; INP; SI;
D O I
10.1149/05009.0897ecst
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
We have investigated the epitaxial growth of Ge1-xSnx layers with a high Sn content over 10% and their optical properties. We examined the growth of Ge1-xSnx epitaxial layers with Sn contents over 10% on Ge and InP substrates. We have achieved the epitaxial growth of a Ge1-xSnx layer with a 27%-Sn content which is much higher than a thermoequilibrium solid solubility of Sn in Ge. We have also revealed the Sn content dependence of the direct energy bandgap for Ge1-xSnx layers with wide Sn contents ranging from 5% to 27%.
引用
收藏
页码:897 / 902
页数:6
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