{"title":"Accelerating target analyte measurement in resistive sensors: A multiplierless first-order differentiation method with SnS2 gas sensor","authors":"Naveen Kumar Bandari, Srinivasulu Kanaparthi, Shiv Govind Singh","doi":"10.1016/j.sna.2025.116442","DOIUrl":null,"url":null,"abstract":"<div><div>In various chemical sensing applications, rapid measurement of analyte concentrations is essential. While estimating the equilibrium response from initial transient responses provides a practical and cost-effective solution, existing techniques often involve extensive data, complex algorithms, or inefficiencies. This study presents a discrete multiplierless first-order differentiation method designed to expedite the measurement of NH<sub>3</sub> gas concentration using a resistive gas sensor composed of SnS<sub>2</sub> nanostructures at room temperature (25 ± 3 °C). This method significantly reduces stabilized response measurement time by transforming the sensor’s monotonically changing response into a non-monotonic one and associating the resulting peaks with NH<sub>3</sub> gas concentration. Specifically, it makes gas concentration determination 85–94 % faster for concentrations ranging from 42 to 105 ppm than traditional steady-state measurements. This enhanced speed makes the method well-suited for resource-limited applications requiring rapid analyte quantification.</div></div>","PeriodicalId":21689,"journal":{"name":"Sensors and Actuators A-physical","volume":"388 ","pages":"Article 116442"},"PeriodicalIF":4.1000,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Sensors and Actuators A-physical","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0924424725002481","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
In various chemical sensing applications, rapid measurement of analyte concentrations is essential. While estimating the equilibrium response from initial transient responses provides a practical and cost-effective solution, existing techniques often involve extensive data, complex algorithms, or inefficiencies. This study presents a discrete multiplierless first-order differentiation method designed to expedite the measurement of NH3 gas concentration using a resistive gas sensor composed of SnS2 nanostructures at room temperature (25 ± 3 °C). This method significantly reduces stabilized response measurement time by transforming the sensor’s monotonically changing response into a non-monotonic one and associating the resulting peaks with NH3 gas concentration. Specifically, it makes gas concentration determination 85–94 % faster for concentrations ranging from 42 to 105 ppm than traditional steady-state measurements. This enhanced speed makes the method well-suited for resource-limited applications requiring rapid analyte quantification.
期刊介绍:
Sensors and Actuators A: Physical brings together multidisciplinary interests in one journal entirely devoted to disseminating information on all aspects of research and development of solid-state devices for transducing physical signals. Sensors and Actuators A: Physical regularly publishes original papers, letters to the Editors and from time to time invited review articles within the following device areas:
• Fundamentals and Physics, such as: classification of effects, physical effects, measurement theory, modelling of sensors, measurement standards, measurement errors, units and constants, time and frequency measurement. Modeling papers should bring new modeling techniques to the field and be supported by experimental results.
• Materials and their Processing, such as: piezoelectric materials, polymers, metal oxides, III-V and II-VI semiconductors, thick and thin films, optical glass fibres, amorphous, polycrystalline and monocrystalline silicon.
• Optoelectronic sensors, such as: photovoltaic diodes, photoconductors, photodiodes, phototransistors, positron-sensitive photodetectors, optoisolators, photodiode arrays, charge-coupled devices, light-emitting diodes, injection lasers and liquid-crystal displays.
• Mechanical sensors, such as: metallic, thin-film and semiconductor strain gauges, diffused silicon pressure sensors, silicon accelerometers, solid-state displacement transducers, piezo junction devices, piezoelectric field-effect transducers (PiFETs), tunnel-diode strain sensors, surface acoustic wave devices, silicon micromechanical switches, solid-state flow meters and electronic flow controllers.
Etc...