{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,7]],"date-time":"2026-04-07T16:37:26Z","timestamp":1775579846767,"version":"3.50.1"},"reference-count":39,"publisher":"MDPI AG","issue":"17","license":[{"start":{"date-parts":[[2022,8,23]],"date-time":"2022-08-23T00:00:00Z","timestamp":1661212800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Reykjavik University","award":["220006"],"award-info":[{"award-number":["220006"]}]},{"name":"Reykjavik University","award":["218029-051"],"award-info":[{"award-number":["218029-051"]}]},{"name":"Reykjavik University","award":["14 N\/2019"],"award-info":[{"award-number":["14 N\/2019"]}]},{"name":"Icelandic Research Fund Grant","award":["220006"],"award-info":[{"award-number":["220006"]}]},{"name":"Icelandic Research Fund Grant","award":["218029-051"],"award-info":[{"award-number":["218029-051"]}]},{"name":"Icelandic Research Fund Grant","award":["14 N\/2019"],"award-info":[{"award-number":["14 N\/2019"]}]},{"name":"Romanian Core Program","award":["220006"],"award-info":[{"award-number":["220006"]}]},{"name":"Romanian Core Program","award":["218029-051"],"award-info":[{"award-number":["218029-051"]}]},{"name":"Romanian Core Program","award":["14 N\/2019"],"award-info":[{"award-number":["14 N\/2019"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Silicon nanowires (SiNWs) are known to exhibit a large piezoresistance (PZR) effect, making them suitable for various sensing applications. Here, we report the results of a PZR investigation on randomly distributed and interconnected vertical silicon nanowire arrays as a pressure sensor. The samples were produced from p-type (100) Si wafers using a silver catalyzed top-down etching process. The piezoresistance response of these SiNW arrays was analyzed by measuring their I-V characteristics under applied uniaxial as well as isostatic pressure. The interconnected SiNWs exhibit increased mechanical stability in comparison with separated or periodic nanowires. The repeatability of the fabrication process and statistical distribution of measurements were also tested on several samples from different batches. A sensing resolution down to roughly 1m pressure was observed with uniaxial force application, and more than two orders of magnitude resistance variation were determined for isostatic pressure below atmospheric pressure.<\/jats:p>","DOI":"10.3390\/s22176340","type":"journal-article","created":{"date-parts":[[2022,8,24]],"date-time":"2022-08-24T02:55:34Z","timestamp":1661309734000},"page":"6340","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["Piezoresistance Characterization of Silicon Nanowires in Uniaxial and Isostatic Pressure Variation"],"prefix":"10.3390","volume":"22","author":[{"given":"Elham","family":"Fakhri","sequence":"first","affiliation":[{"name":"Department of Engineering, Reykjavik University, Menntavegur 1, 102 Reykjavik, Iceland"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7406-1517","authenticated-orcid":false,"given":"Rodica","family":"Plugaru","sequence":"additional","affiliation":[{"name":"National Institute for Research and Development in Microtechnologies-IMT Bucharest, 077190 Voluntari, Romania"}]},{"given":"Muhammad Taha","family":"Sultan","sequence":"additional","affiliation":[{"name":"Department of Engineering, Reykjavik University, Menntavegur 1, 102 Reykjavik, Iceland"},{"name":"Science Institute, University of Iceland, Dunhaga 3, 107 Reykjavik, Iceland"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7258-9844","authenticated-orcid":false,"given":"Thorsteinn","family":"Hanning Kristinsson","sequence":"additional","affiliation":[{"name":"Department of Engineering, Reykjavik University, Menntavegur 1, 102 Reykjavik, Iceland"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6074-6598","authenticated-orcid":false,"given":"H\u00e1kon","family":"\u00d6rn \u00c1rnason","sequence":"additional","affiliation":[{"name":"Department of Engineering, Reykjavik University, Menntavegur 1, 102 Reykjavik, Iceland"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1720-0610","authenticated-orcid":false,"given":"Neculai","family":"Plugaru","sequence":"additional","affiliation":[{"name":"National Institute for Research and Development in Microtechnologies-IMT Bucharest, 077190 Voluntari, Romania"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0713-4664","authenticated-orcid":false,"given":"Andrei","family":"Manolescu","sequence":"additional","affiliation":[{"name":"Department of Engineering, Reykjavik University, Menntavegur 1, 102 Reykjavik, Iceland"}]},{"given":"Snorri","family":"Ingvarsson","sequence":"additional","affiliation":[{"name":"Science Institute, University of Iceland, Dunhaga 3, 107 Reykjavik, Iceland"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1729-4098","authenticated-orcid":false,"given":"Halldor Gudfinnur","family":"Svavarsson","sequence":"additional","affiliation":[{"name":"Department of Engineering, Reykjavik University, Menntavegur 1, 102 Reykjavik, Iceland"}]}],"member":"1968","published-online":{"date-parts":[[2022,8,23]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"75","DOI":"10.1016\/j.nantod.2012.12.009","article-title":"Silicon nanowires for advanced energy conversion and storage","volume":"8","author":"Peng","year":"2013","journal-title":"Nano Today"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"424006","DOI":"10.1088\/1361-6528\/aba02a","article-title":"Thermoelectric properties of tubular nanowires in the presence of a transverse magnetic field","volume":"31","author":"Heris","year":"2020","journal-title":"Nanotechnology"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"101834","DOI":"10.1016\/j.surfin.2022.101834","article-title":"Effects of transverse geometry on the thermal conductivity of Si and Ge nanowires","volume":"30","author":"Heris","year":"2022","journal-title":"Surf. 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