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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

An easy method of preparing ozone gas sensors based on ZnO nanorods

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Catto, Ariadne C. [1] ; da Silva, Luis F. [2] ; Ribeiro, Caue [3] ; Bernardini, Sandrine [4] ; Aguir, Khalifa [4] ; Longo, Elson [2] ; Mastelaro, Valmor. R. [1]
Total Authors: 7
[1] Univ Sao Paulo, Inst Fis Sao Carlos, BR-13566590 Sao Carlos, SP - Brazil
[2] Univ Estadual Paulista, Inst Quim, LIEC, BR-14800900 Araraquara, SP - Brazil
[3] Embrapa Instrumentacao, BR-13560970 Sao Carlos, SP - Brazil
[4] Aix Marseille Univ, CNRS, IM2NP, UMR7334, Marseille - France
Total Affiliations: 4
Document type: Journal article
Source: RSC ADVANCES; v. 5, n. 25, p. 19528-19533, 2015.
Web of Science Citations: 37

One-dimensional (1D) ZnO nanorod-like structures were successfully grown via a hydrothermal method to be used as an ozone gas sensor. X-ray diffraction measurements (XRD) and field-emission scanning electron microscopy (FE-SEM) analysis revealed a preferential growth of the nanorod-like structures along the {[}002] direction. Electrical resistance measurements indicated a good sensitivity to different ozone concentrations (0.06-1.19 ppm) as well as long-term stability over a 6 month period at 250 degrees C. In addition, it was observed that the nanorods had a good sensitivity to ozone at room temperature when the sensor was exposed to UV illumination. This study provides an easy and efficient way to obtain 1-D ZnO nanorods exhibiting remarkable properties for applications as ozone gas sensing materials. (AU)

FAPESP's process: 12/15170-6 - Synthesis and characterization of ZnO thin and thick films : application as gas sensors
Grantee:Ariadne Cristina Catto
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 13/07296-2 - CDMF - Center for the Development of Functional Materials
Grantee:Elson Longo da Silva
Support type: Research Grants - Research, Innovation and Dissemination Centers - RIDC
FAPESP's process: 13/09573-3 - Synthesis and characterization of the ZnO/SnO2 heterostructures obtained by hydrothermal method: gas sensor applications
Grantee:Luís Fernando da Silva
Support type: Scholarships in Brazil - Post-Doctorate