Scientific Results

Growth and gas sensing properties of self-assembled chain-like ZnO nanostructures

Year: 2012

Authors: Galstyan V., Comini E., Baratto C., Ponzoni A., Faglia G., Sberveglieri G., Bontempi E., Brisotto M.

Autors Affiliation: SENSOR Lab, Department of Chemistry and Physics, University of Brescia and CNR-IDASC, Via Valotti 9, 25133 Brescia, Italy; INSTM and Chemistry for Technologies Laboratory, University of Brescia, Via Branze 28, 25133 Brescia, Italy

Abstract: This work reports the preparation of self-assembled chain-like ZnO nanostructures and investigation of their gas sensing properties. Chain-like ZnO nanostructures of high density and homogeneity were obtained by electrochemical anodization method. The structures were prepared on alumina, silicon and flexible substrates. Optical properties of the structures were investigated. Gas sensing properties of obtained structures have been tested in a wide range of operating temperatures and towards different gases.

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More Information: Ministero dell’Istruzione, dell’Università e della Ricerca, MIUR, RBAP115AYN. – This work is supported by the European Community’s 7th Framework Programme under grant agreement n° 247768 S3 project and by the Italian MIUR through the FIRB Project RBAP115AYN “Oxides at the nanoscale: multifunctionality and applications”.
KeyWords: Chain-like; Electro-chemical anodization; Flexible substrate; Gas sensing properties; High density; Operating temperature; Self-assembled; ZnO; ZnO nanostructures, Alumina; Chemical detection; Chemical sensors; Gas detectors; Optical properties; Zinc oxide, Nanostructures

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