Quantum resonance of nanometre-scale metal-ZnO-metal structure and its application in sensors
Author(s) -
Lijie Li,
Paul Rees
Publication year - 2016
Publication title -
aip advances
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.421
H-Index - 58
ISSN - 2158-3226
DOI - 10.1063/1.4939815
Subject(s) - nanometre , nanoscopic scale , metal , resonance (particle physics) , quantum , materials science , scattering , quantum well , condensed matter physics , optoelectronics , nanotechnology , optics , physics , quantum mechanics , composite material , metallurgy , laser
Analysis of the thickness dependence of the potential profile of the metal-ZnO-metal (MZM) structure has been conducted based on Poisson’s equation and Schottky theory. Quantum scattering theory is then used to calculate the transmission probability of an electron passing through the MZM structure. Results show that the quantum resonance (QR) effect becomes pronounced when the thickness of the ZnO film reaches to around 6 nm. Strain induced piezopotentials are considered as biases to the MZM, which significantly changes the QR according to the analysis. This effect can be potentially employed as nanoscale strain sensors.
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