Transparent ZnO Nanowire-Network Ultraviolet Photosensor
2011
This paper demonstrates the fabrication of transparent ultraviolet (UV) photosensors with a self-assembling ordered ZnO nanowired network. The average optical transmission of the entire networked photosensor structure in the visible range of the spectrum is about 70%. At an applied bias of 5 V and 340-nm irradiation, the photoresponsivity and the ratio of UV-to-visible rejection was 175.58 and 207.63 A/W for the transparent UV photosensors. For a bandwidth of 100 Hz and an applied bias of 5 V, the noise equivalent power and normalized detectivity of the devices were 2.32 × 10 -10 W and 4.36 × 10 8 cm · Hz 0.5 /W , respectively.
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