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首页> 外文期刊>Journal of Crystal Growth >Free-standing zinc-blende (cubic) GaN layers and substrates
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Free-standing zinc-blende (cubic) GaN layers and substrates

机译:独立式闪锌矿(立方)GaN层和衬底

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摘要

It has been demonstrated that it is possible to grow by molecular beam epitaxy bulk free-standing zinc-blende (cubic) GaN layers. Such layers have potential applications as lattice matched substrates for growth of non-polar cubic GaN device structures of improved performance. We present the data from characterisation measurements that confirm the cubic nature of the GaN crystals and show that the fraction of the hexagonal material is not more than about 10% in the best 50 μm thick free-standing GaN samples. Our research is aimed at increasing the size of the free-standing cubic GaN layers in order to make this technology suitable for the commercial production of substrates and we have now demonstrated the growth of 100 μm thick, 2-in diameter GaN substrates.
机译:已经证明,可以通过分子束外延块状自支撑的闪锌矿(立方)GaN层来生长。这样的层具有潜在的应用作为晶格匹配衬底,用于生长具有改进性能的非极性立方GaN器件结构。我们提供了来自表征测量的数据,这些数据证实了GaN晶体的立方性质,并表明在最佳的50μm厚的自立式GaN样品中,六角形材料的比例不超过约10%。我们的研究旨在增加独立式立方GaN层的尺寸,以使该技术适用于衬底的商业化生产,现在我们已经证明了100μm厚,2直径GaN衬底的增长。

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