Phosphorus-Species-Induced Band-Gap Anomaly in InGaP Grown by Solid-Source Molecular-Beam Epitaxy
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概要
- 論文の詳細を見る
We report on the growth of InGaP by solid-source molecular-beam epitaxy. It is revealed by photoluminescence (PL) that a lower effective band-gap energy appeared when a higher phosphorus cracker temperature was used. Temperature-dependent PL and polarized photoreflectance (PR) also exhibited a weaker atomic ordering effect when the phosphorus cracker temperature increased. Since the variation of the phosphorus cracker temperature significantly changed the P2/P4 ratio, we believe that a more chemically reactive P2 will not only incorporate more In atoms into the epilayer, but will also bring about a smaller composition fluctuation and weaker ordering effect. Therefore, InGaP grown under a more P2-rich condition probably has a higher In content which results in a lower band-gap energy instead of the ordering effect.
- Publication Office, Japanese Journal of Applied Physics, Faculty of Science, University of Tokyoの論文
- 2001-02-15
著者
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Huang Kai-feng
Electro Physics Department National Chiao-tung University
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Chi Sien
Institute Of Electro-optical Engineering National Chiao-tung University
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Cheng Yi-cheng
Institute Of Electro-optical Engineering National Chiao-tung University
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Huang Kai-Feng
Electrophysics Department, National Chiao-Tung University, Hsinchu, Taiwan 300, Republic of China
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Cheng Yi-Cheng
Institute of Electro-Optical Engineering, National Chiao-Tung University, Hsinchu, Taiwan 300, Republic of China
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Chi Sien
Institute of Electro-Optical Engineering, National Chiao-Tung University, Hsinchu, Taiwan 300, Republic of China
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