Nano-engineering and functionalization of hybrid Au-Mex Oy -TiO2 (Me = W, Ga) hetero-interfaces for optoelectronic receptors and nociceptors

Nanoscale
Hongyan XuSerge Zhuiykov

Abstract

Bio-inspired nano-electronic devices are key instruments for the development of advanced artificial intelligence systems, which will shape the future of humanoid nano-robotics. An emerging demand is realized for an accurate reception of environmental stimuli via visual perception, processing and realization of optical signals. The present study demonstrates the capability of functionalized all-oxide heterostructured two-dimensional (2D) plasmonic devices for the self-adaptive recognition of visual optical pulses. Specifically, the nano-engineering of the metal/semiconductor interface and co-modulation of heterostructured 2D semiconductor hetero-interfaces of Au/WO3 : TiO2 and Au/Ga2O3 : TiO2 facilitated the receptive and nociceptive detection of visible light pulses. A decrease in the dark current of the Au/WO3 : TiO2 unit resulted in the development of sensitive visible light photoreceptors. Furthermore, the modulation of charge transfers at the Au/Ga2O3 : TiO2 hetero-interfaces were the key parameter to determine the optical reception characteristics and nociceptive performance of all-oxide optoelectronic devices. Specifically, the rapid thermal annealing (RTA) of 2D Ga2O3 in N2 atmosphere ensured the modulation of charge tra...Continue Reading

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Citations

Feb 24, 2021·Chemical Society Reviews·Sharafadeen GbadamasiNasir Mahmood
Mar 3, 2021·Nanoscale·Priyanka BhatnagarJoondong Kim

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Methods Mentioned

BETA
atomic
scanning electron microscopy
transmission electron microscopy

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