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首页> 外文期刊>Journal of Crystal Growth >Sb surfactant-mediated growth of strained InGaAs multiple-quantum wells by metalorganic vapor phase epitaxy at low growth temperatures
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Sb surfactant-mediated growth of strained InGaAs multiple-quantum wells by metalorganic vapor phase epitaxy at low growth temperatures

机译:锑表面活性剂介导的低生长温度下金属有机气相外延生长应变InGaAs多量子阱

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摘要

We report on the influence of growth temperature on the Sb surfactant-mediated growth of strained InGaAs multiple-quantum wells by metalorganic vapor phase epitaxy and propose an effective method for obtaining the surfactant effect at low growth temperatures. When reducing the growth temperature from 620 to 540 ℃, the Sb supply, which is needed to improve the surface morphology and the photoluminescence intensity, decreases to one tenth because of the surface segregation of the Sb atoms. With the help of Sb segregation, the surfactant effect at a growth temperature of 540 ℃ is obtained simply by supplying Sb prior to well growth.
机译:我们报告了生长温度对金属有机气相外延生长在Sb表面活性剂介导的应变InGaAs多量子阱中生长的影响,并提出了一种在低生长温度下获得表面活性剂效应的有效方法。当将生长温度从620降低到540℃时,由于Sb原子的表面偏析,改善表面形貌和光致发光强度所需的Sb供给减少到十分之一。借助Sb的分离,只需在井生长之前先添加Sb,即可在540℃的生长温度下获得表面活性剂效果。

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