Normal and Shear Forces Generated during the Ordering (Directed Assembly) of Confined Straight and Curved Nanowires

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• 作者：Younjin Min ; Mustafa Akbulut ; Nataly Belman ; Yuval Golan ; Joe Zasadzinski ; Jacob Israelachvili
• 刊名：Nano Letters
• 出版年：2008
• 出版时间：January 2008
• 年：2008
• 卷：8
• 期：1
• 页码：246 - 252
• 全文大小：725K
• 年卷期：v.8,no.1(January 2008)
• ISSN：1530-6992

文摘

The effects of shape on nanowire interactions and shear-induced ordering were studied. Both the normal and lateral forces were sensitive tothe particles' curvature. (i) No adhesion was observed between the confining surfaces, and the force profiles were short-ranged and mostlyreversible for straight wires but longer-ranged and irreversible for curved wires. (ii) Structural phase transitions can occur in confined nanoparticlefilms. (iii) During shearing, straight wires order or align more easily than curved wires.