Fig. 6: CNF bundle strain sensor.
From: Single and bundled carbon nanofibers as ultralightweight and flexible piezoresistive sensors
a Schematic of the electrospinning setup for single PAN nanofibers across micro-trench and nanofiber bundles on an aluminum foil substrate; photograph of the fabricated micro-trench sample; SEM image of electrospun single PAN nanofibers across the micro-trench. b Flexible stabilized electrospun PAN nanofibers. c CNF bundle embedded in PDMS substrate in flexed position demonstrating excellent flexibility. d Schematic diagram of elements of the strain sensor. e CNF strain sensor in straightened position. f Flexible ultralightweight carbonized electrospun PAN nanofibers on a leaf. Scale bar (a) = 50 µm.
