Fig. 6
From: A welding phenomenon of dissimilar nanoparticles in dispersion

TEM images showing the welding between Au NPs and different chalcogenide NPs. a, c Low and b, d high magnification TEM images of a, b Au–Ag2Se HNPs welded from spherical Au and Ag2Se NPs and c, d Au–Ag2S HNPs welded from spherical Au and rod-like Ag2S NPs. Scale bars are 20 nm in a, 5 nm in b, 50 nm in c, and 10 nm in d