Research Article
Growth of Vertically Aligned ZnO Nanowire Arrays Using Bilayered Metal Catalysts
Table 1
Experimental growth conditions and results of ZnO NW samples.
| Samples | Thickness of metal (nm) | Morphology | NW length | NW diameter (nm) |
| A | Cu : Au = 1 nm : 5 nm | Vertically aligned NW | >5 μm | 20–200 | B | Cu : Au = 3 nm : 3 nm | Vertical NW | >2 μm | 20–200 | C | Cu : Au = 5 nm : 1 nm | Mixture growth of vertical NW and nano-wall | <2 μm | 50–400 | D | Ni : Au = 1 nm : 5 nm | Vertically aligned NW | >5 μm | 20–200 | E | Ni : Au = 3 nm : 3 nm | Vertically NW and nano-wall | 500 nm–2 μm | 50–300 | F | Cu = 5 nm | Mostly vertical NW | >2 μm | 50–300 | G | Ni = 5 nm | Few sparse and short NW | <200 nm | 30–60 | H | Ti : Au = 1 nm : 5 nm | Few vertical NW | <3 μm | 60–150 | I | Cr : Au = 1 nm : 5 nm | Sparse and vertical NW | 400 nm–2 μm | 60–200 | J | Au = 5 nm | Vertically aligned NW | >5 μm | 20–200 |
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