Fig. 6. Fabrication of Cu NW TEs by laser plasmonic nanowelding method. (a) Schematic illustrations of the plasmonic laser nanowelding process; (b) optical and SEM images (insets) of as-prepared, laser-nanowelded, and bulk-heated Cu NW films;106 (c) schematic illustration and optical photographs of the “nanorecycling” process.107.
