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首页> 外文期刊>Journal of Materials Research >Homoepitaxial (111) diamond grown by temperature-controlled chemical vapor deposition
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Homoepitaxial (111) diamond grown by temperature-controlled chemical vapor deposition

机译:通过温度控制化学气相沉积法生长的同质外延(111)金刚石

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摘要

We investigated the growth of high-quality homoepitaxial diamond on the (l l l) face in a microwave-assisted plasma chemical-vapor-deposition system incorpporating an individual substrate heating/cooling device. The grown diamond films were characterized by scanning electron microscopy, reflection high-energy electron diffraction, atomic force microscopy, confocal micro-Raman spectroscopy, and secondary ion mass spectrometry. The (l l l) diamond films show a tendency to incorporate a significant amount of hydrogen during chemical-vapor-deposition growth. Hydrogen incorporation degrades the crystal quality and surface smoothness. The amount of incorporated hydrogen decreases with the decrease in deposition temperature. We have shown that the crystal quality and surface smoothness of homoepitaxial diamond strongly depend on the substrate temperature. Independent control of the substrate temperature and incident microwave power is essential fOr high-quality diamond homoepitaxy.
机译:我们在结合了单个基板加热/冷却装置的微波辅助等离子体化学气相沉积系统中,研究了高品质同质外延金刚石在(111)面上的生长情况。通过扫描电子显微镜,反射高能电子衍射,原子力显微镜,共聚焦显微拉曼光谱和二次离子质谱法表征生长的金刚石膜。 (111)金刚石膜显示出在化学气相沉积生长期间掺入大量氢的趋势。氢的引入降低了晶体的质量和表面光滑度。氢的引入量随着沉积温度的降低而降低。我们已经表明,同质外延金刚石的晶体质量和表面光滑度在很大程度上取决于基底温度。对于高质量的金刚石同质性,独立控制衬底温度和入射微波功率至关重要。

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