Pressure-sensing performance of the horizontally oriented MWCNTs. (a) Relative change in resistance after the application of pressure. The inset shows a plot of resistance changes, which range from a small scale of applied pressure to 5 kPa. The initial resistance R0 is measured at 150 kΩ. (b) Structure of the nanotubes during stretching.
Mohammad Haniff et al. Nanoscale Research Letters 2014 9:49 doi:10.1186/1556-276X-9-49