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Homoepitaxial Growth of Cubic Silicon Carbide by Sublimation Epitaxy

机译:升华外延法生长立方碳化硅

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摘要

Cubic silicon carbide has enough potential for high power and high frequency devices with low loss. In order to achieve such devices, thick, smooth surface, low-doped and high crystal quality epitaxial layers are needed. In order to obtain such layers, homoepitaxial growth was carried out by sublimation epitaxy on cubic silicon carbide substrates. The surface of cubic silicon carbide layers grown at the growth rate of 42 μm/h was very smooth and comparable to that of α-silicon carbide. The crystal quality of epitaxial layers was better than that of substrates. However, much impurity such as aluminum and nitrogen was observed by the photoluminescence.
机译:立方碳化硅具有足够的潜力,可用于低损耗的大功率和高频设备。为了实现这样的器件,需要厚的,光滑的表面,低掺杂和高晶体质量的外延层。为了获得这样的层,通过升华外延在立方碳化硅衬底上进行同质外延生长。以42μm/ h的生长速度生长的立方碳化硅层的表面非常光滑,与α-碳化硅相当。外延层的晶体质量优于衬底。但是,通过光致发光观察到很多杂质,例如铝和氮。

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