Table 1 Characteristic features of substrates annealed at different temperatures and nanostructures grown on these substrates
From: Effects of substrate annealing on the gold-catalyzed growth of ZnO nanostructures
Substrate anneal T (°C) | RMS roughness (nm) | Terrace width (nm) | Gold droplet size (nm) | Gold droplet density (cm-2) | Nanostructure density (cm-2) |
|---|---|---|---|---|---|
As-received | 0.46 | N/A | 24.5 ± 10.8 | 7.3 · 1010 | 2.53 · 108 |
1,000 | 0.36 | 30-150 | 22.3 ± 10.2 | 7.0 · 1010 | 4.21 · 108 |
1,200 | 0.24 | 100-700 | 24.0 ± 9.3 | 6.8 · 1010 | 1.19 · 109 |
1,400 | 0.16 | 100-350 | 19.4 ± 6.5 | 1.4 · 1011 | 9.87 · 108 |