Figure 1. Micelle formation and analysis after irradiation with electrons.

(a) Self-assembly of block copolymer micelles OsMs containing encapsulated osmium carborane complex (b–e): analysis of a typical area after degradation of the micelles by irradiation showing formation of a self-supporting graphitic matrix and individual osmium atoms (scale bar, 1 nm), characterized as follows: (b) Fast Fourier transform corresponding to single-sheet graphene-like material at the edges of the material, blue circle. (c) Intensity plot along the green line; the difference in thickness of the graphitic matrix (single layer versus 2 or more layers) is evident from the range of intensities (pink bands), similarly the difference between single and stacked Os atoms is evident for the cluster of atoms (green arrows), demonstrating its 3D nature. (d) Fast Fourier transform corresponding to a three-layer graphene-like material, yellow circle. (e) Detection of single Os atoms along the red line.