Growth of InAs Wurtzite Nanocrosses from Hexagonal and Cubic Basis,Nano Letters

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Growth of InAs Wurtzite Nanocrosses from Hexagonal and Cubic Basis
Nano Letters ( IF 9.6 ) Pub Date : 2017-09-22 00:00:00 , DOI: 10.1021/acs.nanolett.7b02604
Filip Krizek ₁ , Thomas Kanne ₁ , Davydas Razmadze ₁ , Erik Johnson _{1,

2} , Jesper Nygård ₁ , Charles M. Marcus ₁ , Peter Krogstrup ₁

Affiliation

Epitaxially connected nanowires allow for the design of electron transport experiments and applications beyond the standard two terminal device geometries. In this Letter, we present growth methods of three distinct types of wurtzite structured InAs nanocrosses via the vapor–liquid–solid mechanism. Two methods use conventional wurtzite nanowire arrays as a 6-fold hexagonal basis for growing single crystal wurtzite nanocrosses. A third method uses the 2-fold cubic symmetry of (100) substrates to form well-defined coherent inclusions of zinc blende in the center of the nanocrosses. We show that all three types of nanocrosses can be transferred undamaged to arbitrary substrates, which allows for structural, compositional, and electrical characterization. We further demonstrate the potential for synthesis of as-grown nanowire networks and for using nanowires as shadow masks for in situ fabricated junctions in radial nanowire heterostructures.

中文翻译：

从六角和立方的基础上生长InAs纤锌矿纳米交叉

外延连接的纳米线可用于电子传输实验的设计和超出标准的两个终端设备几何形状的应用。在这封信中，我们通过汽-液-固机理介绍了三种不同类型的纤锌矿型InAs纳米交叉的生长方法。两种方法都使用常规的纤锌矿纳米线阵列作为六倍六边形的基础，用于生长单晶纤锌矿纳米十字。第三种方法使用（100）衬底的2倍立方对称性在纳米十字的中心形成锌混合物的明确定义的连贯包裹体。我们表明，所有三种类型的Nanocrosss都可以在不损坏的情况下转移到任意基质上，从而可以进行结构，组成和电学表征。

更新日期：2017-09-23

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