A Quantum Biomimetic Electronic Nose Sensor

Abstract We propose a technologically feasible one-dimensional double barrier resonant tunneling diode (RTD) as electronic nose, inspired by the vibration theory of biological olfaction. The working principle is phonon-assisted inelastic electron tunneling spectroscopy (IETS), modeled here using the...

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Autores principales:	Ashlesha Patil, Dipankar Saha, Swaroop Ganguly
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/57bc8bbe273f472babe45a2884c6d487
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spelling	oai:doaj.org-article:57bc8bbe273f472babe45a2884c6d4872021-12-02T15:08:43ZA Quantum Biomimetic Electronic Nose Sensor10.1038/s41598-017-18346-22045-2322https://doaj.org/article/57bc8bbe273f472babe45a2884c6d4872018-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-18346-2https://doaj.org/toc/2045-2322Abstract We propose a technologically feasible one-dimensional double barrier resonant tunneling diode (RTD) as electronic nose, inspired by the vibration theory of biological olfaction. The working principle is phonon-assisted inelastic electron tunneling spectroscopy (IETS), modeled here using the Non-Equilibrium Green Function formalism for quantum transport. While standard IETS requires low-temperature operation to obviate the thermal broadening of spectroscopic peaks, we show that quantum confinement in the well of the RTD provides electron energy filtering in this case and could thereby allow room-temperature operation. We also find that the IETS peaks - corresponding to adsorbed foreign molecules - shift monotonically along the bias voltage coordinate with their vibrational energy, promising a selective sensor.Ashlesha PatilDipankar SahaSwaroop GangulyNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-8 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Ashlesha Patil Dipankar Saha Swaroop Ganguly A Quantum Biomimetic Electronic Nose Sensor
description	Abstract We propose a technologically feasible one-dimensional double barrier resonant tunneling diode (RTD) as electronic nose, inspired by the vibration theory of biological olfaction. The working principle is phonon-assisted inelastic electron tunneling spectroscopy (IETS), modeled here using the Non-Equilibrium Green Function formalism for quantum transport. While standard IETS requires low-temperature operation to obviate the thermal broadening of spectroscopic peaks, we show that quantum confinement in the well of the RTD provides electron energy filtering in this case and could thereby allow room-temperature operation. We also find that the IETS peaks - corresponding to adsorbed foreign molecules - shift monotonically along the bias voltage coordinate with their vibrational energy, promising a selective sensor.
format	article
author	Ashlesha Patil Dipankar Saha Swaroop Ganguly
author_facet	Ashlesha Patil Dipankar Saha Swaroop Ganguly
author_sort	Ashlesha Patil
title	A Quantum Biomimetic Electronic Nose Sensor
title_short	A Quantum Biomimetic Electronic Nose Sensor
title_full	A Quantum Biomimetic Electronic Nose Sensor
title_fullStr	A Quantum Biomimetic Electronic Nose Sensor
title_full_unstemmed	A Quantum Biomimetic Electronic Nose Sensor
title_sort	quantum biomimetic electronic nose sensor
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/57bc8bbe273f472babe45a2884c6d487
work_keys_str_mv	AT ashleshapatil aquantumbiomimeticelectronicnosesensor AT dipankarsaha aquantumbiomimeticelectronicnosesensor AT swaroopganguly aquantumbiomimeticelectronicnosesensor AT ashleshapatil quantumbiomimeticelectronicnosesensor AT dipankarsaha quantumbiomimeticelectronicnosesensor AT swaroopganguly quantumbiomimeticelectronicnosesensor
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A Quantum Biomimetic Electronic Nose Sensor

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