High-performance gas sensors with temperature measurement

Yong Zhang, Shengtao Li, Jingyuan Zhang, Zhigang Pan, Daomin Min, Xin Li, Xiaoping Song, Junhua Liu

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

There are a number of gas ionization sensors using carbon nanotubes as cathode or anode. Unfortunately, their applications are greatly limited by their multi-valued sensitivity, one output value corresponding to several measured concentration values. Here we describe a triple-electrode structure featuring two electric fields with opposite directions, which enable us to overcome the multi-valued sensitivity problem at 1 atm in a wide range of gas concentrations. We used a carbon nanotube array as the first electrode, and the two electric fields between the upper and the lower interelectrode gaps were designed to extract positive ions generated in the upper gap, hence significantly reduced positive ion bombardment on the nanotube electrode, which allowed us to maintain a high electric field near the nanotube tips, leading to a single-valued sensitivity and a long nanotube life. We have demonstrated detection of various gases and simultaneously monitoring temperature, and a potential for applications.

Original languageEnglish
Article number1267
JournalScientific Reports
Volume3
DOIs
Publication statusPublished - 2013
Externally publishedYes

Fingerprint

Electrodes
Nanotubes
Gases
Temperature
Carbon Nanotubes
Ions

ASJC Scopus subject areas

  • General

Cite this

Zhang, Y., Li, S., Zhang, J., Pan, Z., Min, D., Li, X., ... Liu, J. (2013). High-performance gas sensors with temperature measurement. Scientific Reports, 3, [1267]. https://doi.org/10.1038/srep01267

High-performance gas sensors with temperature measurement. / Zhang, Yong; Li, Shengtao; Zhang, Jingyuan; Pan, Zhigang; Min, Daomin; Li, Xin; Song, Xiaoping; Liu, Junhua.

In: Scientific Reports, Vol. 3, 1267, 2013.

Research output: Contribution to journalArticle

Zhang, Y, Li, S, Zhang, J, Pan, Z, Min, D, Li, X, Song, X & Liu, J 2013, 'High-performance gas sensors with temperature measurement', Scientific Reports, vol. 3, 1267. https://doi.org/10.1038/srep01267
Zhang, Yong ; Li, Shengtao ; Zhang, Jingyuan ; Pan, Zhigang ; Min, Daomin ; Li, Xin ; Song, Xiaoping ; Liu, Junhua. / High-performance gas sensors with temperature measurement. In: Scientific Reports. 2013 ; Vol. 3.
@article{533ba0d6df724004a7b7c2ef28dae9cd,
title = "High-performance gas sensors with temperature measurement",
abstract = "There are a number of gas ionization sensors using carbon nanotubes as cathode or anode. Unfortunately, their applications are greatly limited by their multi-valued sensitivity, one output value corresponding to several measured concentration values. Here we describe a triple-electrode structure featuring two electric fields with opposite directions, which enable us to overcome the multi-valued sensitivity problem at 1 atm in a wide range of gas concentrations. We used a carbon nanotube array as the first electrode, and the two electric fields between the upper and the lower interelectrode gaps were designed to extract positive ions generated in the upper gap, hence significantly reduced positive ion bombardment on the nanotube electrode, which allowed us to maintain a high electric field near the nanotube tips, leading to a single-valued sensitivity and a long nanotube life. We have demonstrated detection of various gases and simultaneously monitoring temperature, and a potential for applications.",
author = "Yong Zhang and Shengtao Li and Jingyuan Zhang and Zhigang Pan and Daomin Min and Xin Li and Xiaoping Song and Junhua Liu",
year = "2013",
doi = "10.1038/srep01267",
language = "English",
volume = "3",
journal = "Scientific Reports",
issn = "2045-2322",
publisher = "Nature Publishing Group",

}

TY - JOUR

T1 - High-performance gas sensors with temperature measurement

AU - Zhang, Yong

AU - Li, Shengtao

AU - Zhang, Jingyuan

AU - Pan, Zhigang

AU - Min, Daomin

AU - Li, Xin

AU - Song, Xiaoping

AU - Liu, Junhua

PY - 2013

Y1 - 2013

N2 - There are a number of gas ionization sensors using carbon nanotubes as cathode or anode. Unfortunately, their applications are greatly limited by their multi-valued sensitivity, one output value corresponding to several measured concentration values. Here we describe a triple-electrode structure featuring two electric fields with opposite directions, which enable us to overcome the multi-valued sensitivity problem at 1 atm in a wide range of gas concentrations. We used a carbon nanotube array as the first electrode, and the two electric fields between the upper and the lower interelectrode gaps were designed to extract positive ions generated in the upper gap, hence significantly reduced positive ion bombardment on the nanotube electrode, which allowed us to maintain a high electric field near the nanotube tips, leading to a single-valued sensitivity and a long nanotube life. We have demonstrated detection of various gases and simultaneously monitoring temperature, and a potential for applications.

AB - There are a number of gas ionization sensors using carbon nanotubes as cathode or anode. Unfortunately, their applications are greatly limited by their multi-valued sensitivity, one output value corresponding to several measured concentration values. Here we describe a triple-electrode structure featuring two electric fields with opposite directions, which enable us to overcome the multi-valued sensitivity problem at 1 atm in a wide range of gas concentrations. We used a carbon nanotube array as the first electrode, and the two electric fields between the upper and the lower interelectrode gaps were designed to extract positive ions generated in the upper gap, hence significantly reduced positive ion bombardment on the nanotube electrode, which allowed us to maintain a high electric field near the nanotube tips, leading to a single-valued sensitivity and a long nanotube life. We have demonstrated detection of various gases and simultaneously monitoring temperature, and a potential for applications.

UR - http://www.scopus.com/inward/record.url?scp=84874307490&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84874307490&partnerID=8YFLogxK

U2 - 10.1038/srep01267

DO - 10.1038/srep01267

M3 - Article

C2 - 23405281

AN - SCOPUS:84874307490

VL - 3

JO - Scientific Reports

JF - Scientific Reports

SN - 2045-2322

M1 - 1267

ER -