Low-temperature impedance spectroscopic analyses of ceramic electrodes based on Mo and Co co-doped SnO2

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUnifei-Campus Itabira-
Autor(es): dc.contributorUnifei-Campus Itajubá-
Autor(es): dc.contributorNational Research Council (CONICET)-
Autor(es): dc.contributorUniversidade Federal de São Carlos (UFSCar)-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.creatorFerreira, Diego H.O.-
Autor(es): dc.creatorVaz, Isabela C.F.-
Autor(es): dc.creatorRubinger, Rero M.-
Autor(es): dc.creatorBuono, Camila-
Autor(es): dc.creatorRocha, Leandro S.R.-
Autor(es): dc.creatorPonce, Miguel A.-
Autor(es): dc.creatorLongo, Elson-
Autor(es): dc.creatorSimões, Alexandre Z. [UNESP]-
Autor(es): dc.creatorMoura, Francisco-
Data de aceite: dc.date.accessioned2022-02-22T00:33:52Z-
Data de disponibilização: dc.date.available2022-02-22T00:33:52Z-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2019-01-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.2298/PAC1904360F-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/201564-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/201564-
Descrição: dc.descriptionLow resistive electrodes based on Co and Mo co-doped SnO2 were prepared by the conventional solid-state reaction and sintered at 1250 °C for 2 h. Concentration of Co2O3 precursor was unchanged (1 mol%), while MoO3 was varied (0.25, 0.50 to 0.75 mol%) to promote conductivity. The structural and microstructural characterization revealed that the samples have a rutile-type structure without secondary phases and large rutile grains with low porosity. Electrical measurements on DC mode have shown a semiconductor behaviour of the SnO2 samples doped with 0.25 and 0.75 at. % of Mo at temperatures below 50 K, indicating their suitability for low-temperature electronic applications. Impedance measurements indicate reduced energy barriers of less than 1 meV formed between highly conductive crystallites for the SnO2 samples doped with 0.25 and 0.75 at. % of Mo. The sample with Mo content of 0.50 at. % presented a higher energy barrier at a few hundredths of eV, with space charges at the crystallite boundaries.-
Descrição: dc.descriptionUniversidade Federal de Itajubá Unifei-Campus Itabira, Rua Irmã Ivone Drumond, 200, Distrito Industrial II-
Descrição: dc.descriptionUniversidade Federal de Itajubá Unifei-Campus Itajubá, Av. BPS, 1303, Bairro Pinheirinho-
Descrição: dc.descriptionUniversity of Mar del Plata (UNMdP) Institute of Materials Science and Technology (INTEMA) National Research Council (CONICET), Av. Juan B. Justo 4302-
Descrição: dc.descriptionFederal University of São Carlos (UFSCar)-
Descrição: dc.descriptionSao Paulo State University (Unesp) School of Engineering-
Descrição: dc.descriptionSao Paulo State University (Unesp) School of Engineering-
Formato: dc.format360-367-
Idioma: dc.languageen-
Relação: dc.relationProcessing and Application of Ceramics-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectCo/Mo co-doped SnO2-
Palavras-chave: dc.subjectComplex impedance spectroscopy-
Palavras-chave: dc.subjectLow-temperature electronic applications-
Título: dc.titleLow-temperature impedance spectroscopic analyses of ceramic electrodes based on Mo and Co co-doped SnO2-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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