Vertically aligned silicon nanowires

Fig. 5.10 (a) Response of FET-based sensor shown in Figure 5.9c to NO2 diluted in N. Inset an extended response of the sensor to 20 ppb NO2 (Reprinted with permission from McAlpine et al. 2007, Copyright 2007 Nature Publishing Group), (b) Response to NH3 and NO2 at various concentrations for an ordered, vertically aligned silicon nanowire-based resistive gas sensor with a porous electrode (Reprinted with permission from Field et al. 2011, Copyright 2011 American Chemical Society)... 

Metallic nanowires with vertical alignment have been prepared on silicone substrates using a nanoporous alumina template. The fact that the substrate is flexible should be an advantage in a number of applications. 

Matefi-Tempfii, S. Matefi-Tempfli, M., Vertically Aligned Nanowires on Flexible Silicone Using a Supported Alumina Template Prepared by Pulsed Anodization. A Jv. Mater. 2009, 21,4005-4010. 

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