Vertical well-aligned and crabwise ZnO nanowires were prepared on patterned ZnO:Ga/glass substrates by reactive evaporation method under different growth conditions. The average length and diameter of vertical well-aligned ZnO nanowires were around 1 um and 50-100 nm, respectively. In contrast, the average length and diameter of crabwise ZnO nanowires were around S um and 30 nm, respectively. Upon illumination with UV light (λ=362 nm), it was found that measured responsivities were 0.015 and 0.03 A/W for the crabwise ZnO nanowire photodetector biased at 10 and 15 V, respectively. Furthermore, a rejection ratio of approximately 10 was obtained for the crabwise ZnO nanowire photodetector with an applied bias of 10 V.
All Science Journal Classification (ASJC) codes
- Computer Science Applications
- Electrical and Electronic Engineering