{"id":211,"date":"2020-06-14T20:39:04","date_gmt":"2020-06-14T18:39:04","guid":{"rendered":"http:\/\/sphera.ino.cnr.it\/?page_id=211"},"modified":"2020-06-14T20:40:44","modified_gmt":"2020-06-14T18:40:44","slug":"conductometric-sensors","status":"publish","type":"page","link":"https:\/\/prismlab.ino.cnr.it\/?page_id=211","title":{"rendered":"Conductometric sensors"},"content":{"rendered":"\n

The realization of all-electrical devices using semiconducting nanowires as the sensing element is particularly attractive because it enables ready signal transduction and integration into miniaturized systems. The interaction between the NW surface and the adsorbed molecules causes a local modification of the energy band structure in the semiconductor, which affects the electrical transport properties.<\/p>\n\n\n\n

In this context, nanowires (NWs) are emerging as promising platforms for the development of ultrasensitive sensors for the direct detection of biological and chemical species. The large surface-to-volume ratio is considered as one of the key advantages for the increased sensor response of nanowire-based devices.<\/p>\n\n\n\n

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Scheme of the test chamber and representative measurement output<\/figcaption><\/figure>\n\n\n\n

In our group we have strong expertise in preparation and characterization of chemical sensor based on semiconducting material. They were investigated as thin films [1] <\/a>and as NWs [2]<\/a>. NWs can be investigated as bundle of NWs [3]<\/a>,[<\/a>4]<\/a> or single NW [5]<\/a> and aligned [6]<\/a> NWs, in order to gain information on their diameter dependent properties.<\/p>\n\n\n\n

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Sensing tests with ZnO NWs – Ethanol and acetone –
Working temperature 400\u00b0C<\/figcaption><\/figure>\n\n\n\n
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  • [1] C. Baratto, R. Kumar, G. Faglia, G. Sberveglieri, K.Vojisavljevic, B. Malic,  p-Type copper aluminum oxide thin films for gas-sensing applications, Sensors and Actuators B-Chemical, 209(2015) 287-96.<\/li><\/ul>\n\n\n\n
    • [2] A. Ponzoni, C. Baratto, N. Cattabiani, M. Falasconi, V. Galstyan, E. Nunez-Carmona, et al., Metal Oxide Gas Sensors, a Survey of Selectivity Issues Addressed at the SENSOR Lab, Brescia (Italy), Sensors (Basel), 17(2017).<\/li><\/ul>\n\n\n\n
      • [3] C. Baratto \u201cGrowth and properties of ZnO nanorods by RF-sputtering for detection of toxic gases\u201d, RSC Advances, 8 2018, 32038-32043<\/li><\/ul>\n\n\n\n
        • [4] C. Baratto, R. Kumar, E. Comini, M. Ferroni, M. Campanini, Bottle-brush-shaped heterostructures of NiO-ZnO nanowires: growth study and sensing properties. Nanotechnology, 46, 28,  465502 (2017)<\/li><\/ul>\n\n\n\n
          • [5] V. Demontis, M.  Rocci, M. Donarelli, R. Maiti, V. Zannier, F. Beltram, L. Sorba, S. Roddaro, F. Rossella,C.  Baratto, \u201cConductometric Sensing with Individual InAs Nanowires\u201d SENSORS , 19, 13 (2019)<\/li><\/ul>\n\n\n\n
            • [6] C. Baratto, Viktoria Golovanov, G. Faglia, H. Hakola, T. Niemi, N. Tkachenko, B. Nazarchurk, Viacheslav Golovanov, \u201cOn the alignment of ZnO nanowires by Langmuir \u2013 Blodgett technique for sensing application\u201d, Applied Surface Science, June 2020, in press<\/li><\/ul>\n<\/div><\/div>\n\n\n\n

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              The realization of all-electrical devices using semiconducting nanowires as the sensing element is particularly attractive because it enables ready signal transduction and integration into miniaturized systems. The interaction between the NW surface and the adsorbed molecules causes a local modification of the energy band structure in the semiconductor, which affects the electrical transport properties. In […]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":170,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-211","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/prismlab.ino.cnr.it\/index.php?rest_route=\/wp\/v2\/pages\/211","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prismlab.ino.cnr.it\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/prismlab.ino.cnr.it\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/prismlab.ino.cnr.it\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/prismlab.ino.cnr.it\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=211"}],"version-history":[{"count":12,"href":"https:\/\/prismlab.ino.cnr.it\/index.php?rest_route=\/wp\/v2\/pages\/211\/revisions"}],"predecessor-version":[{"id":227,"href":"https:\/\/prismlab.ino.cnr.it\/index.php?rest_route=\/wp\/v2\/pages\/211\/revisions\/227"}],"up":[{"embeddable":true,"href":"https:\/\/prismlab.ino.cnr.it\/index.php?rest_route=\/wp\/v2\/pages\/170"}],"wp:attachment":[{"href":"https:\/\/prismlab.ino.cnr.it\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=211"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}