Fig. 2. Transmission electron micrographs of bare and hollow SiNRs with different aspect ratios: (a) 2.5, (b) 8, and (c) 11. (d) Small angle X-ray scattering data (open symbol) of an ethanolic solution of 0.1 w/w% hollow SiNRs at 25 °C. The data were fitted (solid line) using a core–shell hollow cylinder model as described in the Experimental section. For the ease of viewing, the data plots have been shifted vertically by a factor of 0.1, 1.0 and 2.5 for SiNRs with 2.5, 8, and 11 aspect ratios, respectively.
