{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["D'Olimpio G"],"funding":["Ministero dell?Istruzione, dell?Universit? e della Ricerca","Ministry of Science and Higher Education of the Russian Federation","European Commission","Ministerio de Ciencia e Innovaci?n","Ministerio de Econom?a y Competitividad"],"pagination":["9003-9011"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC8015219"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["11(21)"],"pubmed_abstract":["Tin diselenide (SnSe<sub>2</sub>) is a van der Waals semiconductor, which spontaneously forms a subnanometric SnO<sub>2</sub> skin once exposed to air. Here, by means of surface-science spectroscopies and density functional theory, we have investigated the charge redistribution at the SnO<sub>2</sub>-SnSe<sub>2</sub> heterojunction in both oxidative and humid environments. Explicitly, we find that the work function of the pristine SnSe<sub>2</sub> surface increases by 0.23 and 0.40 eV upon exposure to O<sub>2</sub> and air, respectively, with a charge transfer reaching 0.56 e<sup>-</sup>/SnO<sub>2</sub> between the underlying SnSe<sub>2</sub> and the SnO<sub>2</sub> skin. Remarkably, both pristine SnSe<sub>2</sub> and defective SnSe<sub>2</sub> display chemical inertness toward water, in c"],"journal":["The journal of physical chemistry letters"],"pubmed_title":["Charge Redistribution Mechanisms in SnSe<sub>2</sub> Surfaces Exposed to Oxidative and Humid Environments and Their Related Influence on Chemical Sensing."],"pmcid":["PMC8015219"],"funding_grant_id":["730872","CEX2018-000805-M","E12H1800010001","FEUZ-2020-0060","PID2019-109525RB-I00"],"pubmed_authors":["Mentes TO","Politano A","Farias D","Boukhvalov DW","D'Olimpio G","Locatelli A","Genuzio F","Torelli P","Al Taleb A","Paolucci V","Kuo CN","Cantalini C","Lue CS"],"additional_accession":[]},"is_claimable":false,"name":"Charge Redistribution Mechanisms in SnSe<sub>2</sub> Surfaces Exposed to Oxidative and Humid Environments and Their Related Influence on Chemical Sensing.","description":"Tin diselenide (SnSe<sub>2</sub>) is a van der Waals semiconductor, which spontaneously forms a subnanometric SnO<sub>2</sub> skin once exposed to air. Here, by means of surface-science spectroscopies and density functional theory, we have investigated the charge redistribution at the SnO<sub>2</sub>-SnSe<sub>2</sub> heterojunction in both oxidative and humid environments. Explicitly, we find that the work function of the pristine SnSe<sub>2</sub> surface increases by 0.23 and 0.40 eV upon exposure to O<sub>2</sub> and air, respectively, with a charge transfer reaching 0.56 e<sup>-</sup>/SnO<sub>2</sub> between the underlying SnSe<sub>2</sub> and the SnO<sub>2</sub> skin. Remarkably, both pristine SnSe<sub>2</sub> and defective SnSe<sub>2</sub> display chemical inertness toward water, in c","dates":{"release":"2020-01-01T00:00:00Z","publication":"2020 Nov","modification":"2026-05-07T23:06:40.981Z","creation":"2022-02-09T13:50:07.521Z"},"accession":"S-EPMC8015219","cross_references":{"pubmed":["33035062"],"doi":["10.1021/acs.jpclett.0c02616"]}}