Figure 4

Cross-sectional TEM images of sputtered Ag films: (A) as-sputtered, and (B,C) annealed at 250 °C for 5 min, where a-Ag, c-Ag, and nc-Ag stand for amorphous Ag, crystalline Ag, and nano-crystalline Ag, respectively.
Cross-sectional TEM images of sputtered Ag films: (A) as-sputtered, and (B,C) annealed at 250 °C for 5 min, where a-Ag, c-Ag, and nc-Ag stand for amorphous Ag, crystalline Ag, and nano-crystalline Ag, respectively.