Figure 14.

SEM images showing patterns of Zr clusters with varying line spacings (1:5 ratio): (a) Lines composed of Zr oxo clusters with a 15 nm pattern width; (b) Lines of Zr oxo clusters with a 16 nm pattern width; (c) Lines formed from $\mathrm{Z}{\mathrm{r}}_6{\mathrm{O}}_4$ clusters, each 15 nm wide; (d) $\mathrm{Z}{\mathrm{r}}_6{\mathrm{O}}_4$ cluster lines, each 16 nm in width (reprinted with permission from ref. [76], 2022, John Wiley and Sons).