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首页> 外文期刊>Journal of Crystal Growth >Epitaxial growth of high-quality InN films on sapphire substrates by plasma-assisted molecular-beam epitaxy
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Epitaxial growth of high-quality InN films on sapphire substrates by plasma-assisted molecular-beam epitaxy

机译:等离子体辅助分子束外延在蓝宝石衬底上外延生长高质量的InN薄膜

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摘要

Studying the epitaxial growth of InN films by plasma-assisted molecular-beam epitaxy, we found a buffer layer formed with a low-temperature-grown GaN (LT-GaN) and a low-temperature-grown InN (LT-InN) layers to be effective for improving their structural and electrical properties. Not only the growth temperature of a main part of InN film but growth temperatures and thicknesses of LT-GaN and LT-InN layers strongly influenced InN film properties. The surface of a 260-nm-thick InN film grown at the optimum condition was smooth with the surface root-mean-square roughness less than 4nm. Its Hall mobility and background electron density at room temperature were 1420cm~2/Vs and 1.4 x 10~(18)cm~(-3), respectively.
机译:通过等离子辅助分子束外延研究InN薄膜的外延生长,我们发现了由低温生长的GaN(LT-GaN)和低温生长的InN(LT-InN)层形成的缓冲层。有效改善其结构和电性能。不仅InN膜的主要部分的生长温度,而且LT-GaN和LT-InN层的生长温度和厚度强烈地影响InN膜的性能。在最佳条件下生长的260 nm厚的InN膜的表面光滑,表面均方根粗糙度小于4nm。室温下其霍尔迁移率和背景电子密度分别为1420cm〜2 / Vs和1.4 x 10〜(18)cm〜(-3)。

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