Nanoscrews: Asymmetrical Etching of Silver Nanowires

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• 作者：Rachel Lee Siew Tan ; Wen Han Chong ; Yuhua Feng ; Xiaohui Song ; Chu Long Tham ; Jun Wei ; Ming Lin ; Hongyu Chen
• 刊名：Journal of the American Chemical Society
• 出版年：2016
• 出版时间：August 31, 2016
• 年：2016
• 卷：138
• 期：34
• 页码：10770-10773
• 全文大小：337K
• 年卷期：0
• ISSN：1520-5126

文摘

World’s smallest screws with helical threads are synthesized via mild etching of Ag nanowires. With detailed characterization, we show that this nanostructure arises not from the transformation of the initial lattice, but the result of a unique etching mode. Three-dimensional printed models are used to illustrate the evolution of etch pits, from which a possible mechanism is postulated.