Low-voltage and low-power field-ionization gas sensor based on micro-gap between suspended silver nanowires electrodes for toluene detection

Han Il Jung, Soonjae Pyo, Jongbaeg Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

We have demonstrated field-ionization gas sensor using suspended silver nanowires as electrodes. The tight gap of 1.5 μm between two facing sets of suspended in-plane nanowires on top of silicon microelectrodes, as well as the sharp protrusion of nanowires, allows the generation of high and non-uniform electric field. This produces field emission of electrons that result in ionization of gas molecules at a very low voltage applied. The fabricated sensor could detect toluene at 1.5 V of operational voltage, which is 10 times lower than the existing ionization gas sensors. Resultantly, extremely low power consumption of 75 nW for toluene sensing is also achieved, which implies the proposed field-ionization gas sensor could be a strong candidate for mobile device application.

Original languageEnglish
Title of host publication2017 IEEE 30th International Conference on Micro Electro Mechanical Systems, MEMS 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages195-198
Number of pages4
ISBN (Electronic)9781509050789
DOIs
Publication statusPublished - 2017 Feb 23
Event30th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2017 - Las Vegas, United States
Duration: 2017 Jan 222017 Jan 26

Other

Other30th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2017
CountryUnited States
CityLas Vegas
Period17/1/2217/1/26

Fingerprint

gas ionization
Toluene
Chemical sensors
Silver
low voltage
Nanowires
Ionization
toluene
nanowires
silver
Electrodes
electrodes
sensors
Electric potential
Ionization of gases
Microelectrodes
Silicon
Mobile devices
Field emission
Electric power utilization

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanical Engineering
  • Electrical and Electronic Engineering

Cite this

Jung, H. I., Pyo, S., & Kim, J. (2017). Low-voltage and low-power field-ionization gas sensor based on micro-gap between suspended silver nanowires electrodes for toluene detection. In 2017 IEEE 30th International Conference on Micro Electro Mechanical Systems, MEMS 2017 (pp. 195-198). [7863374] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/MEMSYS.2017.7863374
Jung, Han Il ; Pyo, Soonjae ; Kim, Jongbaeg. / Low-voltage and low-power field-ionization gas sensor based on micro-gap between suspended silver nanowires electrodes for toluene detection. 2017 IEEE 30th International Conference on Micro Electro Mechanical Systems, MEMS 2017. Institute of Electrical and Electronics Engineers Inc., 2017. pp. 195-198
@inproceedings{f464eb1453c8435f8034f0cbb129674c,
title = "Low-voltage and low-power field-ionization gas sensor based on micro-gap between suspended silver nanowires electrodes for toluene detection",
abstract = "We have demonstrated field-ionization gas sensor using suspended silver nanowires as electrodes. The tight gap of 1.5 μm between two facing sets of suspended in-plane nanowires on top of silicon microelectrodes, as well as the sharp protrusion of nanowires, allows the generation of high and non-uniform electric field. This produces field emission of electrons that result in ionization of gas molecules at a very low voltage applied. The fabricated sensor could detect toluene at 1.5 V of operational voltage, which is 10 times lower than the existing ionization gas sensors. Resultantly, extremely low power consumption of 75 nW for toluene sensing is also achieved, which implies the proposed field-ionization gas sensor could be a strong candidate for mobile device application.",
author = "Jung, {Han Il} and Soonjae Pyo and Jongbaeg Kim",
year = "2017",
month = "2",
day = "23",
doi = "10.1109/MEMSYS.2017.7863374",
language = "English",
pages = "195--198",
booktitle = "2017 IEEE 30th International Conference on Micro Electro Mechanical Systems, MEMS 2017",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
address = "United States",

}

Jung, HI, Pyo, S & Kim, J 2017, Low-voltage and low-power field-ionization gas sensor based on micro-gap between suspended silver nanowires electrodes for toluene detection. in 2017 IEEE 30th International Conference on Micro Electro Mechanical Systems, MEMS 2017., 7863374, Institute of Electrical and Electronics Engineers Inc., pp. 195-198, 30th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2017, Las Vegas, United States, 17/1/22. https://doi.org/10.1109/MEMSYS.2017.7863374

Low-voltage and low-power field-ionization gas sensor based on micro-gap between suspended silver nanowires electrodes for toluene detection. / Jung, Han Il; Pyo, Soonjae; Kim, Jongbaeg.

2017 IEEE 30th International Conference on Micro Electro Mechanical Systems, MEMS 2017. Institute of Electrical and Electronics Engineers Inc., 2017. p. 195-198 7863374.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

TY - GEN

T1 - Low-voltage and low-power field-ionization gas sensor based on micro-gap between suspended silver nanowires electrodes for toluene detection

AU - Jung, Han Il

AU - Pyo, Soonjae

AU - Kim, Jongbaeg

PY - 2017/2/23

Y1 - 2017/2/23

N2 - We have demonstrated field-ionization gas sensor using suspended silver nanowires as electrodes. The tight gap of 1.5 μm between two facing sets of suspended in-plane nanowires on top of silicon microelectrodes, as well as the sharp protrusion of nanowires, allows the generation of high and non-uniform electric field. This produces field emission of electrons that result in ionization of gas molecules at a very low voltage applied. The fabricated sensor could detect toluene at 1.5 V of operational voltage, which is 10 times lower than the existing ionization gas sensors. Resultantly, extremely low power consumption of 75 nW for toluene sensing is also achieved, which implies the proposed field-ionization gas sensor could be a strong candidate for mobile device application.

AB - We have demonstrated field-ionization gas sensor using suspended silver nanowires as electrodes. The tight gap of 1.5 μm between two facing sets of suspended in-plane nanowires on top of silicon microelectrodes, as well as the sharp protrusion of nanowires, allows the generation of high and non-uniform electric field. This produces field emission of electrons that result in ionization of gas molecules at a very low voltage applied. The fabricated sensor could detect toluene at 1.5 V of operational voltage, which is 10 times lower than the existing ionization gas sensors. Resultantly, extremely low power consumption of 75 nW for toluene sensing is also achieved, which implies the proposed field-ionization gas sensor could be a strong candidate for mobile device application.

UR - http://www.scopus.com/inward/record.url?scp=85015718243&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85015718243&partnerID=8YFLogxK

U2 - 10.1109/MEMSYS.2017.7863374

DO - 10.1109/MEMSYS.2017.7863374

M3 - Conference contribution

SP - 195

EP - 198

BT - 2017 IEEE 30th International Conference on Micro Electro Mechanical Systems, MEMS 2017

PB - Institute of Electrical and Electronics Engineers Inc.

ER -

Jung HI, Pyo S, Kim J. Low-voltage and low-power field-ionization gas sensor based on micro-gap between suspended silver nanowires electrodes for toluene detection. In 2017 IEEE 30th International Conference on Micro Electro Mechanical Systems, MEMS 2017. Institute of Electrical and Electronics Engineers Inc. 2017. p. 195-198. 7863374 https://doi.org/10.1109/MEMSYS.2017.7863374