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首页> 外文期刊>Japanese journal of applied physics >Preparation of free-standing GaN substrates from GaN layers crystallized by hydride vapor phase epitaxy on ammonothermal GaN seeds
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Preparation of free-standing GaN substrates from GaN layers crystallized by hydride vapor phase epitaxy on ammonothermal GaN seeds

机译:在氨热GaN种子上由氢化物气相外延结晶的GaN层制备自支撑GaN衬底

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摘要

Crystallization of GaN by hydride vapor phase epitaxy (HVPE) on ammonothermally grown GaN seed crystals is overviewed. Morphology of the crystal growing surface at the beginning of the crystallization process and at the end of it is presented. Based on these results a rough growth model is proposed. Smooth GaN layers up to 1 mm thick and of a high purity, excellent crystalline quality, without any cracks, and with a low dislocation density are grown. Preparation of the free-standing HVPE-GaN crystals by slicing as well as structural, electrical and optical qualities of the resulting wafers are reported and discussed.
机译:概述了氢化物气相外延(HVPE)在单热生长的GaN籽晶上的GaN结晶。介绍了结晶过程开始时和结束时晶体生长表面的形态。基于这些结果,提出了一个粗略的增长模型。生长出厚度高达1 mm的高纯度,优异的结晶质量,无任何裂纹且位错密度低的光滑GaN层。报告并讨论了通过切片制备自立式HVPE-GaN晶体以及所得晶片的结构,电学和光学质量。

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  • 来源
    《Japanese journal of applied physics》 |2014年第5s1期|05FA04.1-05FA04.5|共5页
  • 作者单位

    Institute of High Pressure Physics PAS, Sokolowska 29/37, 01-142 Warsaw, Poland,TopGaN Sp. z o.o. Sokolowska 29/37, 01-142 Warsaw, Poland;

    Institute of High Pressure Physics PAS, Sokolowska 29/37, 01-142 Warsaw, Poland,TopGaN Sp. z o.o. Sokolowska 29/37, 01-142 Warsaw, Poland;

    Institute of High Pressure Physics PAS, Sokolowska 29/37, 01-142 Warsaw, Poland,TopGaN Sp. z o.o. Sokolowska 29/37, 01-142 Warsaw, Poland;

    Institute of High Pressure Physics PAS, Sokolowska 29/37, 01-142 Warsaw, Poland;

    Institute of High Pressure Physics PAS, Sokolowska 29/37, 01-142 Warsaw, Poland;

    Institute of High Pressure Physics PAS, Sokolowska 29/37, 01-142 Warsaw, Poland;

    Institute of High Pressure Physics PAS, Sokolowska 29/37, 01-142 Warsaw, Poland;

    Institute of High Pressure Physics PAS, Sokolowska 29/37, 01-142 Warsaw, Poland;

    Institute of High Pressure Physics PAS, Sokolowska 29/37, 01-142 Warsaw, Poland;

    Institute of High Pressure Physics PAS, Sokolowska 29/37, 01-142 Warsaw, Poland;

    Institute of High Pressure Physics PAS, Sokolowska 29/37, 01-142 Warsaw, Poland;

    Ammono S.A. Czerwonego Krzyza 2/31, 00-377 Warsaw, Poland;

    Ammono S.A. Czerwonego Krzyza 2/31, 00-377 Warsaw, Poland;

    Ammono S.A. Czerwonego Krzyza 2/31, 00-377 Warsaw, Poland;

    Institute of High Pressure Physics PAS, Sokolowska 29/37, 01-142 Warsaw, Poland,TopGaN Sp. z o.o. Sokolowska 29/37, 01-142 Warsaw, Poland;

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