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首页> 外文会议>Zinc Oxide Materials and Devices II; Proceedings of SPIE-The International Society for Optical Engineering; vol.6474 >Advances in nonpolar ZnO homoepitaxy: 1D surface nanostructure and electron transport
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Advances in nonpolar ZnO homoepitaxy: 1D surface nanostructure and electron transport

机译：非极性ZnO同质外延研究：一维表面纳米结构和电子传输

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摘要

The development of epitaxial growth techniques for the fabrication of nanostructures provides advantages for nanoscale engineering and has yielded many impressive results. ZnO possesses attractive characteristics that include optical, electric and magnetic properties. This material can be utilized to delineate new phenomena through an investigation of surface nanostructures and quantum heterostructures. Homoepitaxy in ZnO can generate specific growth directions in the absence of lattice mismatch at the interface between the film and substrate. Many reports have appeared in the past year concerning the layer growth of nonpolar ZnO. Nonpolar planes are expected to yield large in-plane anisotropy in electrical and optical characterizatics. In nonpolar (10-10) growth using laser-MBE, we found that novel in situ growth techniques allowed for the fabrication of dense arrays of conductive one-dimensional nanostripes with a high degree of lateral periodicity. Highly anisotropic surface morphologies markedly influenced electron transport of ZnO single layers and Mg_(0.12)Zn_(0.88)O/ZnO multi-quantum wells (MQWs) with conductivity parallel to the nanostripe arrays being more than one order of magnitude larger than that observed perpendicular to the nanostripe arrays.
机译：用于制造纳米结构的外延生长技术的发展为纳米级工程提供了优势，并产生了许多令人印象深刻的结果。 ZnO具有吸引人的特性，包括光学，电和磁性能。通过研究表面纳米结构和量子异质结构，可以利用这种材料来描绘新现象。 ZnO中的同质外延可在膜与基材之间的界面处不存在晶格失配的情况下产生特定的生长方向。过去一年中出现了许多有关非极性ZnO层生长的报道。非极性平面在电和光学特性方面有望产生较大的平面各向异性。在使用激光MBE的非极性（10-10）生长中，我们发现新的原位生长技术允许制造具有高度横向周期性的导电一维纳米带的密集阵列。高度各向异性的表面形态显着影响ZnO单层和Mg_（0.12）Zn_（0.88）O / ZnO多量子阱（MQWs）的电子传输，平行于纳米条纹阵列的电导率比垂直观察到的大一个数量级。到纳米条纹阵列。

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