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Tensile Measurement of a Single Crystal Gallium Nitride Nanowire

机译:单晶氮化镓纳米线的拉伸测量

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This paper reports the first direct tensile test on a nearly defect free, n-type (Si-doped) GaN nanowire single crystal. Here, for the first time, nanowires have been integrated with actuated, active microelectromechanical (MEMS) structures using dielectrophoresis-driven self-assembly and Pt-C clamps created using a gallium focused ion beam. The nanowire modulus of elasticity is measured to be 201 GPa, and the nanowire demonstrated more than 4% elongation before one of the clamps failed. Failure of the test sample occurred at the interface of one of the Pt-C clamps with the fixed MEMS stage, rather than in the nanowire itself.
机译:本文报道了在几乎缺陷的N型(Si掺杂)GaN纳米线单晶上的第一种直接拉伸试验。这里,首次,使用使用镓聚焦离子束产生的电泳驱动的自组装和PT-C夹具已经与致动的活性微机电(MEMS)结构集成了纳米线。测量纳米线弹性模量为201GPa,纳米线在其中一个夹具之前显示出大于4%的伸长率。测试样品的故障发生在具有固定MEMS级的一个PT-C夹具的界面处,而不是在纳米线上。

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