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Recent Progress on Anti-Humidity Strategies of Chemiresistive Gas Sensors

In recent decades, chemiresistive gas sensors (CGS) have been widely studied due to their unique advantages of expedient miniaturization, simple fabrication, easy operation, and low cost. As one ubiquitous interference factor, humidity dramatically affects the performance of CGS, which has been negl...

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Detalles Bibliográficos
Autores principales: Wang, Yanjie, Zhou, Yong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9784667/
https://www.ncbi.nlm.nih.gov/pubmed/36556531
http://dx.doi.org/10.3390/ma15248728
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author Wang, Yanjie
Zhou, Yong
author_facet Wang, Yanjie
Zhou, Yong
author_sort Wang, Yanjie
collection PubMed
description In recent decades, chemiresistive gas sensors (CGS) have been widely studied due to their unique advantages of expedient miniaturization, simple fabrication, easy operation, and low cost. As one ubiquitous interference factor, humidity dramatically affects the performance of CGS, which has been neglected for a long time. With the rapid development of technologies based on gas sensors, including the internet of things (IoT), healthcare, environment monitoring, and food quality assessing, the humidity interference on gas sensors has been attracting increasing attention. Inspiringly, various anti-humidity strategies have been proposed to alleviate the humidity interference in this field; however, comprehensive summaries of these strategies are rarely reported. Therefore, this review aims to summarize the latest research advances on humidity-independent CGS. First, we discussed the humidity interference mechanism on gas sensors. Then, the anti-humidity strategies mainly including surface engineering, physical isolation, working parameters modulation, humidity compensation, and developing novel gas-sensing materials were successively introduced in detail. Finally, challenges and perspectives of improving the humidity tolerance of gas sensors were proposed for future research.
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spelling pubmed-97846672022-12-24 Recent Progress on Anti-Humidity Strategies of Chemiresistive Gas Sensors Wang, Yanjie Zhou, Yong Materials (Basel) Review In recent decades, chemiresistive gas sensors (CGS) have been widely studied due to their unique advantages of expedient miniaturization, simple fabrication, easy operation, and low cost. As one ubiquitous interference factor, humidity dramatically affects the performance of CGS, which has been neglected for a long time. With the rapid development of technologies based on gas sensors, including the internet of things (IoT), healthcare, environment monitoring, and food quality assessing, the humidity interference on gas sensors has been attracting increasing attention. Inspiringly, various anti-humidity strategies have been proposed to alleviate the humidity interference in this field; however, comprehensive summaries of these strategies are rarely reported. Therefore, this review aims to summarize the latest research advances on humidity-independent CGS. First, we discussed the humidity interference mechanism on gas sensors. Then, the anti-humidity strategies mainly including surface engineering, physical isolation, working parameters modulation, humidity compensation, and developing novel gas-sensing materials were successively introduced in detail. Finally, challenges and perspectives of improving the humidity tolerance of gas sensors were proposed for future research. MDPI 2022-12-07 /pmc/articles/PMC9784667/ /pubmed/36556531 http://dx.doi.org/10.3390/ma15248728 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Review
Wang, Yanjie
Zhou, Yong
Recent Progress on Anti-Humidity Strategies of Chemiresistive Gas Sensors
title Recent Progress on Anti-Humidity Strategies of Chemiresistive Gas Sensors
title_full Recent Progress on Anti-Humidity Strategies of Chemiresistive Gas Sensors
title_fullStr Recent Progress on Anti-Humidity Strategies of Chemiresistive Gas Sensors
title_full_unstemmed Recent Progress on Anti-Humidity Strategies of Chemiresistive Gas Sensors
title_short Recent Progress on Anti-Humidity Strategies of Chemiresistive Gas Sensors
title_sort recent progress on anti-humidity strategies of chemiresistive gas sensors
topic Review
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9784667/
https://www.ncbi.nlm.nih.gov/pubmed/36556531
http://dx.doi.org/10.3390/ma15248728
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