Figure 3: Morphologies and the optical absorption properties of the FDs.
From: Fractal dendrite-based electrically conductive composites for laser-scribed flexible circuits
(a–c): UV/vis absorption spectra (reflective mode) of the dry powder samples. (a) FD III, (b) FD VI and (c) silver flake (control sample) after annealing at different temperatures in argon atmosphere; (d) schematic representation showing the sintering behaviours of FD VI at different temperatures; (e) an SEM image of two adjacent FD VI, after sintering at 150 °C; (f) a magnified image of the selected area in (e), with the arrows pointing to the fused tips of the adjacent FD VI; (g) an SEM image of FD VI after annealed at 300 °C in argon (scale bars, 1 μm, 200 nm and 200 nm, respectively (e–g)).
