Authored by: Katla Sai Krishna , Muthusamy Eswaramoorthy

Handbook of Nanophysics

Print publication date:  September  2010
Online publication date:  September  2010

Print ISBN: 9781420075427
eBook ISBN: 9781420075434
Adobe ISBN:


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The exciting size- and shape-dependent properties associated with many materials at the nanometer scale evoked a great deal of interest in synthesizing materials with different lengths and shapes [19]. Spheres, wires, rods, and tubes are common shapes that are usually prevalent in material synthesis as against uncommon shapes like rings, bowls, and other complex morphologies. Nanorings, as the name implies, are nanoscale entities with ring-shaped geometry (i.e. the inner diameter of the ring is larger than the width and thickness of the rim) and with one of their dimensions (either the width or the thickness of the rim) in the nanometer range (Figure 39.1). Molecular nanorings are entities in which the size of the ring-shaped molecule is in the nanometer scale.

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