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Molecular Beam Epitaxial Growth, Fabrication, and Characterization of High Efficiency InGaN/GaN Dot-in-a-Wire White Light Emitting Diodes on Si(111)

机译:Si(111)上高效InGaN / GaN线内白光发光二极管的分子束外延生长,制备及表征

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摘要

We report on the molecular beam epitaxial growth, fabrication, and characterization of InGaN/GaN dot-in-a-wire white light emitting diodes (LEDs) grown on Si(111). By varying the In compositions in the dot layers, we have demonstrated strong white light emission. The dot-in-a-wire LEDs exhibit a relatively high internal quantum efficiency of ~ 36.7% and virtually zero efficiency droop for current densities up to ~ 200 A/cm~2 at room temperature, which are attributed to the superior 3-dimensional carrier confinement provided by the dots and to the use of nearly defect and strain-free GaN nanowires.
机译:我们报告了在Si(111)上生长的InGaN / GaN线中白光发光二极管(LED)的分子束外延生长,制造和表征。通过改变点层中的In组成,我们证明了强烈的白光发射。线内发光二极管的内部量子效率相对较高,约为〜36.7%,在室温下电流密度高达〜200 A / cm〜2时,效率几乎为零,这归因于卓越的3维尺寸由点提供的载流子限制,以及使用几乎无缺陷和无应变的GaN纳米线。

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  • 会议地点 Montreal(CA);Montreal(CA)
  • 作者单位

    Department of Electrical and Computer Engineering, McGill University, 3480 University Street, Montreal, Quebec H3A 2A7, Canada;

    Department of Electrical and Computer Engineering, McGill University, 3480 University Street, Montreal, Quebec H3A 2A7, Canada;

    Department of Electrical and Computer Engineering, McGill University, 3480 University Street, Montreal, Quebec H3A 2A7, Canada;

    Department of Electrical and Computer Engineering, McGill University, 3480 University Street, Montreal, Quebec H3A 2A7, Canada;

    Department of Electrical and Computer Engineering, McGill University, 3480 University Street, Montreal, Quebec H3A 2A7, Canada;

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  • 正文语种 eng
  • 中图分类 材料;
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