Confinement-Guided Shaping of Semiconductor Nanowires and Nanoribbons: 鈥淲riting with Nanowires鈥
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- 作者：Alexander Pevzner ; Yoni Engel ; Roey Elnathan ; Alexander Tsukernik ; Zahava Barkay ; and Fernando Patolsky
- 刊名：Nano Letters
- 出版年：2012
- 出版时间：January 11, 2012
- 年：2012
- 卷：12
- 期：1
- 页码：7-12
- 全文大小：285K
- 年卷期：v.12,no.1(January 11, 2012)
- ISSN：1530-6992
文摘
To fully exploit their full potential, new semiconductor nanowire building blocks with ab initio controlled shapes are desired. However, and despite the great synthetic advances achieved, the ability to control nanowire鈥檚 geometry has been significantly limited. Here, we demonstrate a simple confinement-guided nanowire growth method that enables to predesign not only the chemical and physical attributes of the synthesized nanowires but also allows a perfect and unlimited control over their geometry. Our method allows the synthesis of semiconductor nanowires in a wide variety of two-dimensional shapes such as any kinked (different turning angles), sinusoidal, linear, and spiral shapes, so that practically any desired geometry can be defined. The shape-controlled nanowires can be grown on almost any substrate such as silicon wafer, quartz and glass slides, and even on plastic substrates (e.g., Kapton HN).