{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,6]],"date-time":"2025-12-06T17:03:48Z","timestamp":1765040628643,"version":"build-2065373602"},"reference-count":29,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2016,11,9]],"date-time":"2016-11-09T00:00:00Z","timestamp":1478649600000},"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>Here, a silicon nanopillar array (Si-NPA) was fabricated. It was studied as a room-temperature organic vapour sensor, and the ethanol and acetone gas sensing properties were detected with I-V curves. I-V curves show that these Si-NPA gas sensors are sensitive to ethanol and acetone organic vapours. The turn-on threshold voltage is about 0.5 V and the operating voltage is 3 V. With 1% ethanol gas vapour, the response time is 5 s, and the recovery time is 15 s. Furthermore, an evaluation of the gas sensor stability for Si-NPA was performed. The gas stability results are acceptable for practical detections. These excellent sensing characteristics can mainly be attributed to the change of the overall dielectric constant of Si-NPA caused by the physisorption of gas molecules on the pillars, and the filling of the gas vapour in the voids.<\/jats:p>","DOI":"10.3390\/s16111880","type":"journal-article","created":{"date-parts":[[2016,11,9]],"date-time":"2016-11-09T10:09:39Z","timestamp":1478686179000},"page":"1880","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Organic Vapour Sensing Properties of Area-Ordered and Size-Controlled Silicon Nanopillar"],"prefix":"10.3390","volume":"16","author":[{"given":"Wei","family":"Li","sequence":"first","affiliation":[{"name":"State-Province Joint Engineering Laboratory for RF Integration and Micropackaging, College of Electronic Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China"},{"name":"State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China"},{"name":"Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhilin","family":"Feng","sequence":"additional","affiliation":[{"name":"State-Province Joint Engineering Laboratory for RF Integration and Micropackaging, College of Electronic Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Enwen","family":"Dai","sequence":"additional","affiliation":[{"name":"State-Province Joint Engineering Laboratory for RF Integration and Micropackaging, College of Electronic Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jie","family":"Xu","sequence":"additional","affiliation":[{"name":"State-Province Joint Engineering Laboratory for RF Integration and Micropackaging, College of Electronic Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gang","family":"Bai","sequence":"additional","affiliation":[{"name":"State-Province Joint Engineering Laboratory for RF Integration and Micropackaging, College of Electronic Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China"},{"name":"Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2016,11,9]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"8632","DOI":"10.1038\/ncomms9632","article-title":"Ultrahigh sensitivity and layer-dependent sensing performance of phosphorene-based gas sensors","volume":"6","author":"Cui","year":"2015","journal-title":"Nat. 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