Fundamentals of Hierarchical Nanostructures - Hierarchical Nanostructures for Energy Devices - page 15

d n 3 r 4 n g | 7

.

Figure 2.3 Experimental stress-strain response of penta-twinned Ag NWs. (a) Ex-
perimental stress-strain curves of Ag NWs of varying diameter. (b)
Sequential bright field TEM images recorded during the tensile testing
of a 42 nm diameter Ag NW. The arrows indicate localized regions of
plastic deformation nucleated during the tensile test. The roman nu-
merals indicate the point on the stress-strain curve in (a) at which each
image was recorded. The bottom image was recorded after the NW
fractured. The length of the scale bar is 250 nm.
Reproduced with permission from ref. 52.

nanomaterials opened up a new research area that requires high mechanical
compliance such as flexible or stretchable electronics. 56-75

2.2.5 Optical Properties
The brilliant and tunable optical properties of metal nanoparticles have
been intensively researched for the past hundred years. The size-dependent