High Performance Single Walled CNT-ZnO NW Hybrid Heterostructure for UV Photodetection

The optoelectronic properties of Single Walled Carbon nanotubes (SWCNTs) especially in UV photodetection was explored by fabricating a heterostructure (HS) incorporating SWCNTs with Zinc Oxide (ZnO). The structural analysis confirms the formation of the proposed SWCNT/ZnO NW HS. The inclusion of SWCNTs has drastically improved the performance of the HS by giving high responsivity value upto 50 A/W with rise and fall times in the order of milliseconds. The HS fares much better on comparison with existing UV based SWCNT/metal-oxide based HS.