Enhanced low voltage nonlinearity in resonant tunneling metalinsulatorinsulatormetal nanostructures
Ta2O5/Al2O3 and Nb2O5/Al2O3 bi-layer MIM devices were studied. Obtained an asymmetry of 18 at 0.35V on Ta2O5/Al2O3 MIIM device. Peak responsivity of 9A/W at 0.2V achieved on Nb2O5/Al2O3 MIIM. Resonant tunnelling effect was observed near 2V.
nonlinearity resonant tunneling metalinsulatorinsulatormetal nanorectifiers