Figure 4 | Scientific Reports

Figure 4

From: Ambient Aqueous-Phase Synthesis of Copper Nanoparticles and Nanopastes with Low-Temperature Sintering and Ultra-High Bonding Abilities

Figure 4

Preparation of copper electrodes using the nanopaste and characterization of the resulting electrodes. (a) A schematic illustration of the preparation of copper electrodes using the present copper nanopaste; (b) SEM images of the copper electrodes made from the nanopaste on a glass substrate and pressureless sintered at (i) 180 °C, (ii) 200 °C, (iii) 230 °C, and (iv) 260 °C under an N2 atmosphere for 30 min.

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