TlGaP layers grown on GaAs substrates by gas source molecular beam epitaxy

被引:13
|
作者
Fushida, M [1 ]
Asahi, H [1 ]
Yamamoto, K [1 ]
Koh, H [1 ]
Asami, K [1 ]
Gonda, S [1 ]
Oe, K [1 ]
机构
[1] NIPPON TELEGRAPH & TEL PUBL CORP, OPTOELECT LABS, ATSUGI, KANAGAWA 24301, JAPAN
关键词
TlGaP; new III-V semiconductor; temperature insensitivity; gas source MBE; phase separation; photoconductance;
D O I
10.1143/JJAP.36.L665
中图分类号
O59 [应用物理学];
学科分类号
摘要
TlGaP layers are grown on GaAs substrates by gas source molecular beam epitaxy. TlGaP is a constituent ternary alloy of the new III-V compound semiconductor TlInGaP, a material which can be used for 0.9 mu m to over 10 mu m laser diodes and for temperature-insensitive-wavelength laser diodes. TlGaP on GaAs shows phase separation into three stable compositions: TlGaP nearly lattice-matched to GaAs, GaP-like TlGaP and TlP-like TlGaP. By adjusting Tl and Ga fluxes: TlGaP layers without phase separation are grown. Photoconductance measurement on TlGaP shows absorption in the 1.3 mu m wavelength region as well as the small temperature variation of band-gap energy, as expected.
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页码:L665 / L667
页数:3
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