Figure 3From: Highly luminescent near-infrared-emitting gold nanoclusters with further natural etching: photoluminescence and Hg2+ detectionHRTEM images of directly synthesized (A and C) and etched (B and D) Au NCs. The small bars are 1 nm in inset a and b, 5 nm in A and B, and 10 nm in C and D. The diameter dispersion in E and F represents the distributions calculated from the corelDRAW date.Back to article page