Research Article
Effects of Annealing Environments on the Solution-Grown, Aligned Aluminium-Doped Zinc Oxide Nanorod-Array-Based Ultraviolet Photoconductive Sensor
Table 1
The characteristics of the as-grown, oxygen-annealed, air-annealed, and vacuum-annealed Al-doped ZnO nanorod-array-based UV photoconductive sensors.
| | Sample | Resistance (MΩ) | Dark current (A) | Photocurrent (A) | Rise time constant (s) | Decay time constant (s) | Responsivity (A/W) | Sensitivity |
| | As-grown | 0.80 | 6.29 × 10−6 | 3.91 × 10−5 | 38 | 109 | 0.73 | 6.2 | | Oxygen-annealed | 1.59 | 3.03 × 10−6 | 1.69 × 10−4 | 3 | 13 | 3.69 | 55.6 | | Air-annealed | 0.16 | 2.26 × 10−5 | 2.39 × 10−4 | 10 | 26 | 4.81 | 10.6 | | Vacuum-annealed | 0.10 | 5.44 × 10−5 | 2.43 × 10−4 | 15 | 52 | 4.19 | 4.6 |
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