Figure 2
TEM (a) and high-resolution TEM (b) micrographs of gold nanoparticles produced by a 5 min synchrotron X-ray exposure for 10 ml precursor solution ([HAuCl4] = 1 mM). The inset in (a) is the size distribution histogram of the particles. The white lines in (b) are a guide to the eye for the boundaries between different crystalline domains. |