Improved Photoresponse of UV Photodetectors by the Incorporation of Plasmonic Nanoparticles on GaN Through the Resonant Coupling of Localized Surface Plasmon Resonance.

Generally, all three devices showed an increasing trend with the power increase, in which the Ag 4 Au 3 again showed more dynamic and highest photocurrent.

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In terms of power-dependent photoresponse, all the alloy NP-based UV photodetectors showed a decreasing trend of the R , D, and EQE as clearly shown in summary plots in Fig. 5 f–h.

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