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首页> 外文期刊>Journal of Crystal Growth >Highly strained InAs quantum wells on InP substrates for mid-IR emission
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Highly strained InAs quantum wells on InP substrates for mid-IR emission

机译:InP衬底上的高应变InAs量子阱,用于中红外发射

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Optical emission characteristics of indium arsenide (InAs) quantum wells were studied using organometallic vapor phase epitaxy (OMVPE). Low growth temperature (< 500℃) and tertiarybuty-larsine (TBA) and/or arsine precursors were applied for this study. Several growth parameters such as growth temperature, growth rate, interruption time between growths of layers, and mixture of group V precursors were investigated. It was found that relatively high growth rate of InAs (0.3 nm/s) and a mixture flow of TBA and AsH_3, allowed growth of up to 9 nm thick InAs quantum wells without significant strain relaxation. Photoluminescence (PL) wavelengths of 2.52 urn were observed at room temperature (RT) from a 9 nm InAs double quantum well (DQW) in a separate confinement hetero-structure (SCH) structure.
机译:使用有机金属气相外延(OMVPE)研究了砷化铟(InAs)量子阱的光发射特性。低生长温度(<500℃)和叔丁氨酸(TBA)和/或砷化氢前体用于这项研究。研究了几个生长参数,例如生长温度,生长速率,层间生长之间的中断时间以及V型前体的混合物。发现InAs的相对较高的生长速率(0.3 nm / s)以及TBA和AsH_3的混合流,允许生长高达9 nm厚的InAs量子阱而没有明显的应变松弛。在室温(RT)下,在单独的限制异质结构(SCH)结构中,从9 nm InAs双量子阱(DQW)观察到的光致发光(PL)波长为2.52 um。

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