{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,5]],"date-time":"2026-04-05T05:39:45Z","timestamp":1775367585995,"version":"3.50.1"},"reference-count":127,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2024,1,9]],"date-time":"2024-01-09T00:00:00Z","timestamp":1704758400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>We discuss the implementation challenges of gas sensing systems based on low-frequency noise measurements on chemoresistive sensors. Resistance fluctuations in various gas sensing materials, in a frequency range typically up to a few kHz, can enhance gas sensing by considering its intensity and the slope of power spectral density. The issues of low-frequency noise measurements in resistive gas sensors, specifically in two-dimensional materials exhibiting gas-sensing properties, are considered. We present measurement setups and noise-processing methods for gas detection. The chemoresistive sensors show various DC resistances requiring different flicker noise measurement approaches. Separate noise measurement setups are used for resistances up to a few hundred k\u2126 and for resistances with much higher values. Noise measurements in highly resistive materials (e.g., MoS2, WS2, and ZrS3) are prone to external interferences but can be modulated using temperature or light irradiation for enhanced sensing. Therefore, such materials are of considerable interest for gas sensing.<\/jats:p>","DOI":"10.3390\/s24020405","type":"journal-article","created":{"date-parts":[[2024,1,10]],"date-time":"2024-01-10T07:50:48Z","timestamp":1704873048000},"page":"405","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Flicker Noise in Resistive Gas Sensors\u2014Measurement Setups and Applications for Enhanced Gas Sensing"],"prefix":"10.3390","volume":"24","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1459-4199","authenticated-orcid":false,"given":"Janusz","family":"Smulko","sequence":"first","affiliation":[{"name":"Faculty of Electronics, Telecommunications and Informatics, Gda\u0144sk University of Technology, Narutowicza 11\/12, 80-233 Gda\u0144sk, Poland"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3295-0206","authenticated-orcid":false,"given":"Graziella","family":"Scandurra","sequence":"additional","affiliation":[{"name":"Department of Engineering, University of Messina, 98166 Messina, Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0056-0967","authenticated-orcid":false,"given":"Katarzyna","family":"Drozdowska","sequence":"additional","affiliation":[{"name":"Faculty of Electronics, Telecommunications and Informatics, Gda\u0144sk University of Technology, Narutowicza 11\/12, 80-233 Gda\u0144sk, Poland"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4674-5318","authenticated-orcid":false,"given":"Andrzej","family":"Kwiatkowski","sequence":"additional","affiliation":[{"name":"Faculty of Electronics, Telecommunications and Informatics, Gda\u0144sk University of Technology, Narutowicza 11\/12, 80-233 Gda\u0144sk, Poland"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2555-833X","authenticated-orcid":false,"given":"Carmine","family":"Ciofi","sequence":"additional","affiliation":[{"name":"Department of Engineering, University of Messina, 98166 Messina, Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8024-1899","authenticated-orcid":false,"given":"He","family":"Wen","sequence":"additional","affiliation":[{"name":"College of Electrical and Information Engineering, Hunan University, Changsha 410082, China"}]}],"member":"1968","published-online":{"date-parts":[[2024,1,9]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"100","DOI":"10.1016\/j.snb.2009.01.023","article-title":"New perspectives of gas sensor technology","volume":"138","author":"Yamazoe","year":"2009","journal-title":"Sens. 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