Table 3 Specifications for fabricated PDs and comparison with other CGO-based UV-PDs. NS and HJ denote nanostructure and heterojunction, respectively.
Sample | Structure | Idark (nA)/Bias (V) | Responsivity (mA/W)/Wavelength (nm) | Detectivity (Jones) | Rise/Decay time (s) | Photo to dark current ratio (PDCR) | Ref |
|---|---|---|---|---|---|---|---|
CGO/ZnS | NS-HJ | 3.5 × 10–3/5 | − /280–400 | – | –/– | 1.6 | |
CGO NPs | NS | 9.95 × 10+5/10 | 33/365 | – | 0.7/0.3 | 0.19 | |
CGO:Zn NP/ZnO NW | NS-HJ | 1.5 × 10+5/10 | 120/365 | – | 0.8/0.4 | 4.5 | |
Au/CGO/Au | Thin film-MSM | 2.76 × 10+5/ − | 80/UVC | – | ~ 48/ ~ 59 | 1.02 | |
CGO/β-Ga2O3 | Thin film-HJ | − /0 | − /254, 365 | – | < 0.5/ < 0.5 | > 40 | |
CGO:Cr NPs | NS | − /10 | 0.09/365 | – | –/– | 2 | |
CGO:Cr/ZnO/Ag | NS-HJ | − /10 | 31/365 | – | 2.95/3.29 | 10 | |
CGO:Mg/ZnO | NS-HJ | − /10 | 636/365 | – | –/– | 1.74 | |
CGO:Zn/ZnO | NS-HJ | − /10 | 1340/365 | – | –/– | 6.03 | |
Ni/S900/Ni | Thin film-MSM | 1.71 × 10+3/5 | 3/365 | 1.49 × 109 | 23.1/25.7 | 2.5 | This work |
Cu/S900/Cu | Thin film-MSM | 1.36/5 | 29/365 | 4.72 × 1011 | 1.8/5.9 | 3144 | This work |
Ag/S900/Ag | Thin film-MSM | 670/5 | 85/365 | 6.37 × 1010 | 12.2/12.8 | 20 | This work |
