In-Situ Sensor Response of Copper Oxide Urchin-like Structures

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorOrlandi, M. O.-
Autor(es): dc.creatorFelix, A. A.-
Autor(es): dc.creatorSuman, P. H.-
Autor(es): dc.creatorVarela, J. A.-
Autor(es): dc.creatorVolanti, D. P.-
Autor(es): dc.creatorIEEE-
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Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionIn this work we report an advanced study of gas sensor performance of copper oxide (CuO) urchin-like structures synthesized by microwave assisted hydrothermal method. Copper oxide in an interesting p-type semiconductor in order to study the mechanisms related to the sensor response of CuO structures, we developed a special sample holder which enables the simultaneous characterization of materials by X-ray absorption near edge structure (XANES) and electrical measurements. Quantitative XANES analyses showed that the CuO material can have its surface completely reduced when exposed to H-2 in N-2 baseline and electrical measurements confirm the abrupt decrease in the material resistance. This superficial reduction is reversible after exposition of sample to a synthetic air atmosphere. Sensor response models for CuO material based on these findings were proposed.-
Formato: dc.format3-
Idioma: dc.languageen-
Publicador: dc.publisherIeee-
Relação: dc.relation2016 Ieee Sensors-
Relação: dc.relation0,130-
Direitos: dc.rightsopenAccess-
Palavras-chave: dc.subjectSensors-
Palavras-chave: dc.subjectcopper oxide-
Palavras-chave: dc.subjectnanomaterials-
Título: dc.titleIn-Situ Sensor Response of Copper Oxide Urchin-like Structures-
Aparece nas coleções:Repositório Institucional - Unesp

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