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Herein, we simulate and experimentally determine by scanning kelvin probe (SKP) the work functions of three oxides, SiO2, SiO, and SnO2, which were found to be very similar. Electrical properties such as electronic band structure, electron localization function, and carrier mobility were also simulated for the three crystalline oxides, amorphous SiO, and surfaces. The most exciting results were obtained for SiO and seem to show Poole\u2013Frankel emissions or trap-assisted tunneling and propagation of surface plasmon polariton (SPP) with nucleation of solitons on the surface of the Aluminum. These phenomena and proposed models may also describe other oxide-metal heterojunctions and plasmonic and metamaterials devices. The SiO2 was demonstrated to be a stable insulator interacting less with the metals composing the cell than SnO2 and much less than SiO, configuring a typical Cu\/SiO2\/Al cell potential well. Its surface charge carrier mobility is small, as expected for an insulator. The highest charge carrier mobility at the lowest conduction band energy is the SnO2\u2019s and the most symmetrical the SiO\u2019s with a similar number of electron holes at the conduction and valence bands, respectively. The SnO2 shows it may perform as an n-type semiconductor.<\/jats:p>","DOI":"10.3390\/ijms242115985","type":"journal-article","created":{"date-parts":[[2023,11,5]],"date-time":"2023-11-05T07:35:06Z","timestamp":1699169706000},"page":"15985","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":25,"title":["Distinctive Electric Properties of Group 14 Oxides: SiO2, SiO, and SnO2"],"prefix":"10.3390","volume":"24","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1011-5683","authenticated-orcid":false,"given":"Antonio Nuno","family":"Guerreiro","sequence":"first","affiliation":[{"name":"Engineering Physics Department, Engineering Faculty, University of Porto, 4200-465 Porto, Portugal"},{"name":"MatER\u2014Materials for Energy Research Laboratory, Engineering Faculty, University of Porto, 4200-465 Porto, Portugal"}]},{"given":"Ilidio B.","family":"Costa","sequence":"additional","affiliation":[{"name":"MatER\u2014Materials for Energy Research Laboratory, Engineering Faculty, University of Porto, 4200-465 Porto, Portugal"},{"name":"Metallurgical and Materials Engineering Department, Engineering Faculty, University of Porto, 4200-465 Porto, Portugal"}]},{"given":"Antonio B.","family":"Vale","sequence":"additional","affiliation":[{"name":"MatER\u2014Materials for Energy Research Laboratory, Engineering Faculty, University of Porto, 4200-465 Porto, Portugal"},{"name":"Metallurgical and Materials Engineering Department, Engineering Faculty, University of Porto, 4200-465 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4577-2154","authenticated-orcid":false,"given":"Maria Helena","family":"Braga","sequence":"additional","affiliation":[{"name":"Engineering Physics Department, Engineering Faculty, University of Porto, 4200-465 Porto, Portugal"},{"name":"MatER\u2014Materials for Energy Research Laboratory, Engineering Faculty, University of Porto, 4200-465 Porto, Portugal"},{"name":"LAETA\u2014INEGI, Institute of Science and Innovation in Mechanical and Industrial Engineering, 4200-465 Porto, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2023,11,5]]},"reference":[{"key":"ref_1","first-page":"43","article-title":"In Situ Mechanistic Elucidation of Superior Si-C-Graphite Li-Ion Battery Anode Formation with Thermal Safety Aspects","volume":"10","author":"Parekh","year":"2019","journal-title":"Adv. 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