ACS Nano, volume 12, issue 2, pages 986-993

Metallic Ti3C2Tx MXene Gas Sensors with Ultrahigh Signal-to-Noise Ratio

Publication typeJournal Article
Publication date2018-01-25
Journal: ACS Nano
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor17.1
ISSN19360851, 1936086X
General Physics and Astronomy
General Materials Science
General Engineering
Abstract
Achieving high sensitivity in solid-state gas sensors can allow the precise detection of chemical agents. In particular, detection of volatile organic compounds (VOCs) at the parts per billion (ppb) level is critical for the early diagnosis of diseases. To obtain high sensitivity, two requirements need to be simultaneously satisfied: (i) low electrical noise and (ii) strong signal, which existing sensor materials cannot meet. Here, we demonstrate that 2D metal carbide MXenes, which possess high metallic conductivity for low noise and a fully functionalized surface for a strong signal, greatly outperform the sensitivity of conventional semiconductor channel materials. Ti3C2Tx MXene gas sensors exhibited a very low limit of detection of 50-100 ppb for VOC gases at room temperature. Also, the extremely low noise led to a signal-to-noise ratio 2 orders of magnitude higher than that of other 2D materials, surpassing the best sensors known. Our results provide insight in utilizing highly functionalized metallic sensing channels for developing highly sensitive sensors.

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GOST Copy
Kim S. J. et al. Metallic Ti3C2Tx MXene Gas Sensors with Ultrahigh Signal-to-Noise Ratio // ACS Nano. 2018. Vol. 12. No. 2. pp. 986-993.
GOST all authors (up to 50) Copy
Kim S. J., Koh H. J., Ren C. E., Kwon O., Maleski K., Cho S., Anasori B., Kim C., Choi Y. K., Kim J., Gogotsi Y., Jung H. Metallic Ti3C2Tx MXene Gas Sensors with Ultrahigh Signal-to-Noise Ratio // ACS Nano. 2018. Vol. 12. No. 2. pp. 986-993.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1021/acsnano.7b07460
UR - https://doi.org/10.1021%2Facsnano.7b07460
TI - Metallic Ti3C2Tx MXene Gas Sensors with Ultrahigh Signal-to-Noise Ratio
T2 - ACS Nano
AU - Koh, Hyeong Jun
AU - Ren, Chang E.
AU - Maleski, Kathleen
AU - Anasori, Babak
AU - Choi, Yang Kyu
AU - Gogotsi, Yury
AU - Jung, Hee‐Tae
AU - Kim, Seon Joon
AU - Kwon, Ohmin
AU - Cho, Soo-Yeon
AU - Kim, Choong‐Ki
AU - Kim, Jihan
PY - 2018
DA - 2018/01/25 00:00:00
PB - American Chemical Society (ACS)
SP - 986-993
IS - 2
VL - 12
SN - 1936-0851
SN - 1936-086X
ER -
BibTex |
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BibTex Copy
@article{2018_Kim
author = {Hyeong Jun Koh and Chang E. Ren and Kathleen Maleski and Babak Anasori and Yang Kyu Choi and Yury Gogotsi and Hee‐Tae Jung and Seon Joon Kim and Ohmin Kwon and Soo-Yeon Cho and Choong‐Ki Kim and Jihan Kim},
title = {Metallic Ti3C2Tx MXene Gas Sensors with Ultrahigh Signal-to-Noise Ratio},
journal = {ACS Nano},
year = {2018},
volume = {12},
publisher = {American Chemical Society (ACS)},
month = {jan},
url = {https://doi.org/10.1021%2Facsnano.7b07460},
number = {2},
pages = {986--993},
doi = {10.1021/acsnano.7b07460}
}
MLA
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MLA Copy
Kim, Seon Joon, et al. “Metallic Ti3C2Tx MXene Gas Sensors with Ultrahigh Signal-to-Noise Ratio.” ACS Nano, vol. 12, no. 2, Jan. 2018, pp. 986-993. https://doi.org/10.1021%2Facsnano.7b07460.
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