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Preparation of a Freestanding AIN Substrate from a Thick AIN Layer vGrown by Hydride Vapor Phase Epitaxy on a Bulk AIN Substrate Prepared by Physical Vapor Transport

机译:在物理气相传输制备的块状AIN基板上通过氢化物气相外延在厚的AIN层上生长v厚的AIN基板来制备独立的AIN基板

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摘要

The structural and optical quality of a freestanding AIN substrate prepared from a thick AIN layer grown by hydride vapor phase epitaxy (HVPE) on a bulk (0001 )AIN substrate prepared by physical vapor transport (PVT) were investigated. The prepared HVPE-AIN substrate was crack- and stress-free. High-resolution X-ray diffraction ω-rocking curves of symmetric (0002) and skew-symmetric (1011) reflections had small full widths at half maximum (FWHMs) of 31 and 32 arcsec, respectively. Deep-ultraviolet optical transparency of the HVPE-AIN substrate was higher than that of the PVT-AIN substrate, which was related to lower concentrations of C, O impurities, and Al vacancy.
机译:研究了通过氢化物气相外延(HVPE)在通过物理气相传输(PVT)制备的块状(0001)AIN衬底上生长的厚AIN层制备的独立AIN衬底的结构和光学质量。制备的HVPE-AIN基板无裂纹和应力。对称(0002)和斜对称(1011)反射的高分辨率X射线衍射ω-摇摆曲线的半峰全宽(FWHM)分别为31和32 arcsec。 HVPE-AIN基板的深紫外光学透明度高于PVT-AIN基板,这与较低的C,O杂质浓度和Al空位有关。

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  • 来源
    《》 |2012年第5期|p.055504.1-055504.3|共3页
  • 作者单位

    Department of Applied Chemistry, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan;

    Tsukuba Research Laboratories, Tokuyama Corporation, Tsukuba, Ibaraki 300-4247, Japan;

    Department of Applied Chemistry, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan Tsukuba Research Laboratories, Tokuyama Corporation, Tsukuba, Ibaraki 300-4247, Japan;

    Tsukuba Research Laboratories, Tokuyama Corporation, Tsukuba, Ibaraki 300-4247, Japan;

    HexaTech, Inc., Morrisville, NC 27560, U.S.A.;

    HexaTech, Inc., Morrisville, NC 27560, U.S.A.;

    HexaTech, Inc., Morrisville, NC 27560, U.S.A.;

    HexaTech, Inc., Morrisville, NC 27560, U.S.A.;

    Department of Applied Chemistry, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan;

    Department of Applied Chemistry, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan;

    HexaTech, Inc., Morrisville, NC 27560, U.S.A. Department of Materials Science and Engineering, North Carolina State University, Raleigh, NC 27695-7919, U.S.A.;

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