Tin dioxide nano-wire device for sensing kinetics of acetone and ethanol towards diabetes monitoring

Bonex Wakufwa Mwakikunga; Suprakas Sihna Ray; Malose Mokwena; John Dewar; Irina Geibelhaus; Trilok Singh; Thomas Fischer; Sanjay Mathur

doi:10.1109/ICSENS.2013.6688338

Tin dioxide nano-wire device for sensing kinetics of acetone and ethanol towards diabetes monitoring

Bonex Wakufwa Mwakikunga, Suprakas Sihna Ray, Malose Mokwena, John Dewar, Irina Geibelhaus, Trilok Singh, Thomas Fischer, Sanjay Mathur

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

7 Citations (Scopus)

Abstract

We demonstrate how to establish reliable contacts to SnO₂ nano-wires by growing these nano-wire on-chip on gold contacts deposited on alumina. The sensor device is used to sense the concentrations of acetone and ethanol in air and their reaction kinetics. Acetone molecules have higher adsorption and desorption rates on SnO₂ nanowires than ethanol molecules which leads to a lower critical acetone concentration at which the SnO₂ sensor saturates than is the case for ethanol. These differences suggest a new way of introducing selectivity to the notoriously non-selective SnO₂ and other oxide-based nano-scale sensors.

Original language	English
Title of host publication	IEEE SENSORS 2013 - Proceedings
Publisher	IEEE Computer Society
ISBN (Print)	9781467346405
DOIs	https://doi.org/10.1109/ICSENS.2013.6688338
Publication status	Published - 2013
Externally published	Yes
Event	12th IEEE SENSORS 2013 Conference - Baltimore, MD, United States Duration: 4 Nov 2013 → 6 Nov 2013

Publication series

Name	Proceedings of IEEE Sensors

Conference

Conference	12th IEEE SENSORS 2013 Conference
Country/Territory	United States
City	Baltimore, MD
Period	4/11/13 → 6/11/13

Keywords

acetone
ethanol Introduction
human breath
tin dioxide sensor

ASJC Scopus subject areas

Electrical and Electronic Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1109/ICSENS.2013.6688338

Cite this

@inproceedings{61ab55860216421abdec32ec70cb6a3e,

title = "Tin dioxide nano-wire device for sensing kinetics of acetone and ethanol towards diabetes monitoring",

abstract = "We demonstrate how to establish reliable contacts to SnO2 nano-wires by growing these nano-wire on-chip on gold contacts deposited on alumina. The sensor device is used to sense the concentrations of acetone and ethanol in air and their reaction kinetics. Acetone molecules have higher adsorption and desorption rates on SnO2 nanowires than ethanol molecules which leads to a lower critical acetone concentration at which the SnO2 sensor saturates than is the case for ethanol. These differences suggest a new way of introducing selectivity to the notoriously non-selective SnO2 and other oxide-based nano-scale sensors.",

keywords = "acetone, ethanol Introduction, human breath, tin dioxide sensor",

author = "Mwakikunga, {Bonex Wakufwa} and Ray, {Suprakas Sihna} and Malose Mokwena and John Dewar and Irina Geibelhaus and Trilok Singh and Thomas Fischer and Sanjay Mathur",

year = "2013",

doi = "10.1109/ICSENS.2013.6688338",

language = "English",

isbn = "9781467346405",

series = "Proceedings of IEEE Sensors",

publisher = "IEEE Computer Society",

booktitle = "IEEE SENSORS 2013 - Proceedings",

address = "United States",

note = "12th IEEE SENSORS 2013 Conference ; Conference date: 04-11-2013 Through 06-11-2013",

}

Mwakikunga, BW, Ray, SS, Mokwena, M, Dewar, J, Geibelhaus, I, Singh, T, Fischer, T & Mathur, S 2013, Tin dioxide nano-wire device for sensing kinetics of acetone and ethanol towards diabetes monitoring. in IEEE SENSORS 2013 - Proceedings., 6688338, Proceedings of IEEE Sensors, IEEE Computer Society, 12th IEEE SENSORS 2013 Conference, Baltimore, MD, United States, 4/11/13. https://doi.org/10.1109/ICSENS.2013.6688338

Tin dioxide nano-wire device for sensing kinetics of acetone and ethanol towards diabetes monitoring. / Mwakikunga, Bonex Wakufwa; Ray, Suprakas Sihna; Mokwena, Malose et al.
IEEE SENSORS 2013 - Proceedings. IEEE Computer Society, 2013. 6688338 (Proceedings of IEEE Sensors).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Tin dioxide nano-wire device for sensing kinetics of acetone and ethanol towards diabetes monitoring

AU - Mwakikunga, Bonex Wakufwa

AU - Ray, Suprakas Sihna

AU - Mokwena, Malose

AU - Dewar, John

AU - Geibelhaus, Irina

AU - Singh, Trilok

AU - Fischer, Thomas

AU - Mathur, Sanjay

PY - 2013

Y1 - 2013

N2 - We demonstrate how to establish reliable contacts to SnO2 nano-wires by growing these nano-wire on-chip on gold contacts deposited on alumina. The sensor device is used to sense the concentrations of acetone and ethanol in air and their reaction kinetics. Acetone molecules have higher adsorption and desorption rates on SnO2 nanowires than ethanol molecules which leads to a lower critical acetone concentration at which the SnO2 sensor saturates than is the case for ethanol. These differences suggest a new way of introducing selectivity to the notoriously non-selective SnO2 and other oxide-based nano-scale sensors.

AB - We demonstrate how to establish reliable contacts to SnO2 nano-wires by growing these nano-wire on-chip on gold contacts deposited on alumina. The sensor device is used to sense the concentrations of acetone and ethanol in air and their reaction kinetics. Acetone molecules have higher adsorption and desorption rates on SnO2 nanowires than ethanol molecules which leads to a lower critical acetone concentration at which the SnO2 sensor saturates than is the case for ethanol. These differences suggest a new way of introducing selectivity to the notoriously non-selective SnO2 and other oxide-based nano-scale sensors.

KW - acetone

KW - ethanol Introduction

KW - human breath

KW - tin dioxide sensor

UR - http://www.scopus.com/inward/record.url?scp=84893967374&partnerID=8YFLogxK

U2 - 10.1109/ICSENS.2013.6688338

DO - 10.1109/ICSENS.2013.6688338

M3 - Conference contribution

AN - SCOPUS:84893967374

SN - 9781467346405

T3 - Proceedings of IEEE Sensors

BT - IEEE SENSORS 2013 - Proceedings

PB - IEEE Computer Society

T2 - 12th IEEE SENSORS 2013 Conference

Y2 - 4 November 2013 through 6 November 2013

ER -

Tin dioxide nano-wire device for sensing kinetics of acetone and ethanol towards diabetes monitoring

Abstract

Publication series

Conference

Keywords

ASJC Scopus subject areas

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this