A hybrid nanostructure array for gas sensing with ultralow field ionization voltage

Hai Liu; Boluo Yadian; Qing Liu; Chee Lip Gan; Yizhong Huang

doi:10.1088/0957-4484/24/17/175301

A hybrid nanostructure array for gas sensing with ultralow field ionization voltage

Hai Liu^*, Boluo Yadian, Qing Liu, Chee Lip Gan, Yizhong Huang

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

We fabricate a unique hybrid nanostructure array for gas sensing based on the polarization mechanism at the nanoscale. It is shown that with platinum nanocrystallites on the top of each nanoneedle, this array can work at ultralow voltages (less than 10 V) as a field ionization gas sensor. We believe that the polarized platinum brings about a local enhanced electrical field, leading to the direct field ionization of gas molecules, which is confirmed by calculations of the charge accumulation and electrical field distribution.

Original language	English
Article number	175301
Journal	Nanotechnology
Volume	24
Issue number	17
DOIs	https://doi.org/10.1088/0957-4484/24/17/175301
Publication status	Published - May 3 2013
Externally published	Yes

ASJC Scopus Subject Areas

Bioengineering
General Chemistry
General Materials Science
Mechanics of Materials
Mechanical Engineering
Electrical and Electronic Engineering

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10.1088/0957-4484/24/17/175301

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abstract = "We fabricate a unique hybrid nanostructure array for gas sensing based on the polarization mechanism at the nanoscale. It is shown that with platinum nanocrystallites on the top of each nanoneedle, this array can work at ultralow voltages (less than 10 V) as a field ionization gas sensor. We believe that the polarized platinum brings about a local enhanced electrical field, leading to the direct field ionization of gas molecules, which is confirmed by calculations of the charge accumulation and electrical field distribution.",

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AU - Liu, Hai

AU - Yadian, Boluo

AU - Liu, Qing

AU - Gan, Chee Lip

AU - Huang, Yizhong

PY - 2013/5/3

Y1 - 2013/5/3

N2 - We fabricate a unique hybrid nanostructure array for gas sensing based on the polarization mechanism at the nanoscale. It is shown that with platinum nanocrystallites on the top of each nanoneedle, this array can work at ultralow voltages (less than 10 V) as a field ionization gas sensor. We believe that the polarized platinum brings about a local enhanced electrical field, leading to the direct field ionization of gas molecules, which is confirmed by calculations of the charge accumulation and electrical field distribution.

AB - We fabricate a unique hybrid nanostructure array for gas sensing based on the polarization mechanism at the nanoscale. It is shown that with platinum nanocrystallites on the top of each nanoneedle, this array can work at ultralow voltages (less than 10 V) as a field ionization gas sensor. We believe that the polarized platinum brings about a local enhanced electrical field, leading to the direct field ionization of gas molecules, which is confirmed by calculations of the charge accumulation and electrical field distribution.

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A hybrid nanostructure array for gas sensing with ultralow field ionization voltage

Abstract

ASJC Scopus Subject Areas

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