Nanopatterning Gold by Templated Solid State Dewetting on the Silica Warp and Weft of Diatoms

Figure 8

FESEM images. (a) Outcome of dewetting 10 nm Au film on Nitzschia palea frustule functionalized with MPTMS. (a) Film annealed at 400°C for 4 h. (b–d) Separate sample annealed for 1 hour at 450°C and viewed at different magnifications. Compare with Figure 6(b). Note in (a) and (b) the sharp boundary between the film on the substrate and the frustule sternum caused by shadowing during Au deposition.

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(b)

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