{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,20]],"date-time":"2026-09-20T12:36:34Z","timestamp":1789907794104,"version":"4.0.1"},"reference-count":73,"publisher":"IOP Publishing","issue":"6","license":[{"start":{"date-parts":[[2023,11,22]],"date-time":"2023-11-22T00:00:00Z","timestamp":1700611200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/iopscience.iop.org\/page\/copyright"},{"start":{"date-parts":[[2023,11,22]],"date-time":"2023-11-22T00:00:00Z","timestamp":1700611200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/iopscience.iop.org\/info\/page\/text-and-data-mining"}],"funder":[{"name":"University Grants Commission (U.G.C), New Delhi, India"}],"content-domain":{"domain":["iopscience.iop.org"],"crossmark-restriction":false},"short-container-title":["Nanotechnology"],"published-print":{"date-parts":[[2024,2,5]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>In this study, the fabrication of an ultrahigh selective NH<jats:sub>3<\/jats:sub> gas sensor based on RGO\/WO<jats:sub>3<\/jats:sub> nanocomposite has been proposed. The hydrothermal method was employed to synthesize the RGO\/WO<jats:sub>3<\/jats:sub> nanocomposite. The formation of RGO\/WO<jats:sub>3<\/jats:sub> nanocomposite and the elemental composition, structure and morphology of the as-synthesized materials were confirmed through an array of analytical techniques, including XRD, Raman, FT-IR, XPS and TEM. For gas sensing applications, pure RGO and RGO\/WO<jats:sub>3<\/jats:sub> have effectively spin-coated onto the interdigitated electrodes (IDE\u2019s) based on fluorine doped tin oxide (FTO) respectively, and their sensitivity towards NH<jats:sub>3<\/jats:sub> was tested. Gas sensing characteristics of prepared materials were analyzed at room temperature (25 \u00b0C) under different relative humidity (RH) levels. The developed RGO\/WO<jats:sub>3<\/jats:sub> sensor was subjected to different NH<jats:sub>3<\/jats:sub> concentrations, demonstrating a high sensing response of 89% towards 500 ppm NH<jats:sub>3<\/jats:sub> under 11%\u201397%\u201311% RH conditions. Notably, the sensor exhibited rapid response and recovery times with an average response time of 92 s and recovery time of 26 s when exposed to 500 ppm NH<jats:sub>3<\/jats:sub> under the specified RH conditions. To gauge the material selectivity, the prepared nanocomposite was exposed to a range of volatile organic compounds and the results showcased the sensor\u2019s remarkable selectivity and sensitivity specifically toward NH<jats:sub>3<\/jats:sub> vapor. This superior performance can be attributed to the abundant active sites and the excellent electron transport properties inherent to the RGO component. Importantly, the RGO\/WO<jats:sub>3<\/jats:sub> sensor displayed high reproducibility and consistent responses, with minimal degradation (1.98% degradation) over 30 d at 11%\u201397%\u201311% RH. Furthermore, we examined the sensor\u2019s response with varying levels of relative humidity to assess its potential for real-world applications. The sensor exhibited extremely low power consumption, outperforming a commercially available metal oxide sensor while operating at ambient temperature. The robust performance of RGO\/WO<jats:sub>3<\/jats:sub> coupled with low power requirements and ambient temperature operation, positions it as a promising candidate for next-generation gas sensing technologies.<\/jats:p>","DOI":"10.1088\/1361-6528\/ad090a","type":"journal-article","created":{"date-parts":[[2023,11,2]],"date-time":"2023-11-02T22:51:21Z","timestamp":1698965481000},"page":"065503","update-policy":"https:\/\/doi.org\/10.1088\/crossmark-policy","source":"Crossref","is-referenced-by-count":13,"title":["A synergistic approach to enhance sensitivity and selectivity of room temperature operable ammonia gas sensor with humidity assistance using RGO\/WO<sub>3<\/sub> nanocomposite"],"prefix":"10.1088","volume":"35","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7837-4841","authenticated-orcid":false,"given":"Divya","family":"Tripathi","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2750-4538","authenticated-orcid":false,"given":"Pratima","family":"Chauhan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2594-9362","authenticated-orcid":false,"given":"Ravindra Kumar","family":"Rawat","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"266","published-online":{"date-parts":[[2023,11,22]]},"reference":[{"key":"nanoad090abib1","doi-asserted-by":"publisher","first-page":"666","DOI":"10.1016\/j.snb.2004.11.054","volume":"107","author":"Timmer","year":"2005","journal-title":"Sensors Actuators"},{"key":"nanoad090abib2","doi-asserted-by":"crossref","first-page":"16916","DOI":"10.1021\/acsomega.9b02185","volume":"4","author":"Seekaw","year":"2019","journal-title":"ACS Omega"},{"key":"nanoad090abib3","doi-asserted-by":"publisher","DOI":"10.1016\/j.mssp.2021.106221","volume":"137","author":"Srirattanapibul","year":"2022","journal-title":"Mater. 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All rights, including for text and data mining, AI training, and similar technologies, are reserved.","name":"copyright_information","label":"Copyright Information"},{"value":"2023-08-29","name":"date_received","label":"Date Received","group":{"name":"publication_dates","label":"Publication dates"}},{"value":"2023-11-01","name":"date_accepted","label":"Date Accepted","group":{"name":"publication_dates","label":"Publication dates"}},{"value":"2023-11-22","name":"date_epub","label":"Online publication date","group":{"name":"publication_dates","label":"Publication dates"}}]}}