Effect of Si and SiO<sub>2</sub> Substrates on the Geometries of As-Grown Carbon Coils

<table>FESEM images for the etched surface of (a) Si substrate and (b) SiO<sub>2</sub> substrate by SF<sub>6</sub> + H<sub>2</sub> flow.</table>

Journal of Nanomaterials

Figure 9: Effect of Si and SiO<sub>2</sub> Substrates on the Geometries of As-Grown Carbon Coils 