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. 2019 Aug 28;9(46):26961–26980. doi: 10.1039/c9ra04404c

Fig. 4. (a) SEM images of the Cu NW TEs on glass substrates with a transmittance at 87%, (b) AFM image of Cu NW after annealing at 200 °C for 1 h, where the welding point has been formed, and schematic of the nanowelding between two NWs before and after annealing. (c) and (d) Transmittance verse Rsh for the Cu NW TEs which were annealed at 150 °C and 200 °C, respectively, and exposed in air for 30 days.95.

Fig. 4