Figure 5: FD-ECCs for the laser-scribe circuit line patterning.
From: Fractal dendrite-based electrically conductive composites for laser-scribed flexible circuits
(a) Schematic representation showing the laser beam scribing process for the FD-ECCs; the resin binder (polyester) is decomposed into small molecules and evaporated; (b) a photographic image of a capacitive touch panel module with the laser-patterned peripheral circuit lines for a pad; (inset: the detailed morphology of the laser-scribed circuits.) (c–e) SEM images of laser-scribed grooves of FD III-ECC with the laser-scribing power of 10, 15 and 20%; (f–h) SEM images of the laser-scribed grooves of commercial silver paste (FTL-630LE) with the laser-scribing power of 10, 15 and 20%; (both ECCs samples are screen printed and cured on PET; scale bars, 20 μm). (i–k) EDS mapping images of silver elemental distribution, corresponding to (c–e); (l–n) EDS mapping images of silver elemental distribution, corresponding to (f–h).
