2024
DOI: 10.3390/s24051571
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Effects of Visible Light on Gas Sensors: From Inorganic Resistors to Molecular Material-Based Heterojunctions

Sujithkumar Ganesh Moorthy,
Marcel Bouvet

Abstract: In the last two decades, many research works have been focused on enhancing the properties of gas sensors by utilising external triggers like temperature and light. Most interestingly, the light-activated gas sensors show promising results, particularly using visible light as an external trigger that lowers the power consumption as well as improves the stability, sensitivity and safety of the sensors. It effectively eliminates the possible damage to sensing material caused by high operating temperature or high… Show more

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Cited by 5 publications
(2 citation statements)
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“…To avoid stability issues caused by an oxygen atmosphere, further studies with visible and near infrared light should be focused on, as recently reviewed. 63 Finally, fluorinated moieties lead to highly more stable sensors than the non-fluorinated polymers under our sensing conditions, in particular under a humid atmosphere. The copolymers reported here are less conductive than the pristine polymers, which gave us the opportunity to build heterojunctions.…”
Section: Discussionmentioning
confidence: 87%
“…To avoid stability issues caused by an oxygen atmosphere, further studies with visible and near infrared light should be focused on, as recently reviewed. 63 Finally, fluorinated moieties lead to highly more stable sensors than the non-fluorinated polymers under our sensing conditions, in particular under a humid atmosphere. The copolymers reported here are less conductive than the pristine polymers, which gave us the opportunity to build heterojunctions.…”
Section: Discussionmentioning
confidence: 87%
“…There is also a growing interest in exploring flexible and wearable sensor designs for practical applications [28]. Researchers have investigated the gas sensing mechanisms of ZnO, focusing on factors like surface adsorption, charge carrier concentration, and catalytic oxidation reactions [29][30][31]. These advancements are paving the way for a new generation of gas detection technology with the potential to revolutionize safety monitoring, healthcare diagnostics, and industrial process control.…”
Section: Introductionmentioning
confidence: 99%