Skip to main content Accessibility help
×
Home
Hostname: page-component-684899dbb8-489z4 Total loading time: 0.4 Render date: 2022-05-26T14:39:11.422Z Has data issue: true Feature Flags: { "shouldUseShareProductTool": true, "shouldUseHypothesis": true, "isUnsiloEnabled": true, "useRatesEcommerce": false, "useNewApi": true }

On the Role of Oxygen Vacancies in the Determination of the Gas-Sensing Properties of Tin-Oxide Nanowires

Published online by Cambridge University Press:  01 February 2011

Roberto Mosca
Affiliation:
mosca@imem.cnr.itCNR-IMEMParma N/A43100Italy
Mingzheng Zha
Affiliation:
zha@imem.cnr.it, CNR-IMEM, Parma, N/A, 43100, Italy
Davide Calestani
Affiliation:
calle@imem.cnr.it, CNR-IMEM, Parma, N/A, 43100, Italy
Laura Lazzarini
Affiliation:
laura@imem.cnr.it, CNR-IMEM, Parma, N/A, 43100, Italy
Giancarlo Salviati
Affiliation:
salviati@imem.cnr.it, CNR-IMEM, Parma, N/A, 43100, Italy
Andrea Zappettini
Affiliation:
zapp@imem.cnr.it, CNR-IMEM, Parma, N/A, 43100, Italy
Lucio Zanotti
Affiliation:
zanotti@imem.cnr.it, CNR-IMEM, Parma, N/A, 43100, Italy
Elisabetta Comini
Affiliation:
comini@tflab.ing.unibs.it, Sensor Lab., INFM-Università di Brescia, Brescia, N/A, 25133, Italy
Giorgio Sberveglieri
Affiliation:
sbervegl@tflab.ing.unibs.it, Sensor Lab., INFM-Università di Brescia, Brescia, N/A, 25133, Italy
Get access

Abstract

SnO2 nanowires have been recently employed in the “gas-sensors” field and excellent results of conductometric and optical tests on SnO2 nanowires-based gas sensors have been reported.

However, the mechanism that controls the gas-sensing effect in metal oxides nanowires is not fully understood yet. Here the authors present the first results of an in-depth study about the influence of post growth treatments on the physical and gas sensing properties of SnO2 nanowires.

In particular, SnO2 nanowires grown by a vapour transport technique were annealed in a oxygen-rich atmosphere and then characterized by different techniques to assess the influence of the treatment on the nanowires properties.

The annealing in oxygen atmosphere is shown to strongly affect the PL and CL spectra, the electrical resistivity as well as the gas sensing properties of the nanowires. The obtained results are consistent with a reduction of the oxygen vacancies concentration induced by the O2 treatment and seem to confirm the role of these defects in affecting the gas response of SnO2 nanowires-based sensors.

Type
Research Article
Copyright
Copyright © Materials Research Society 2006

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1 Comini, E., Faglia, G., Sberveglieri, G., Pan, Z. and Wang, Z., Applied Physics Letters 81, 1869 (2002).CrossRefGoogle Scholar
2 Comini, E., Faglia, G., Sberveglieri, G., Calestani, D., Zanotti, L., and Zha, M., Sensors and Actuators B 111–112, 2 (2005)CrossRefGoogle Scholar
3 Faglia, G., Baratto, C., Sberveglieri, G., Zha, M., and Zappettini, A., Applied Physics Letters 86, 011923 (2005).CrossRefGoogle Scholar
4 Baratto, C., Comini, E., Faglia, G., Sberveglieri, G., Zha, M., and Zappettini, A., Sensors and Actuators B 109, 2 (2005).CrossRefGoogle Scholar
5 Zanotti, L., Zha, M., Calestani, D., Comini, E., and Sberveglieri, G., Crystal Research and Technology 40, 932 (2005).CrossRefGoogle Scholar
6 Calestani, D., Zha, M., Zappettini, A., Lazzarini, L., Salviati, G., Zanotti, L., and Sberveglieri, G., Materials Science and Engineering C 25, 625 (2005).CrossRefGoogle Scholar
7 Wu, X., Zhou, B., Xu, J., Yu, B., tang, G., Zhang, G., and Chen, W., Nanostructured Materials 8, 179 (1997)CrossRefGoogle Scholar
8 Hu, J., Bando, Y., Liu, Q., and Goldberg, D., Advanced Functional Materials 13, 493 (2003)CrossRefGoogle Scholar
9 Jeon, J., Choi, S.P., Chang, C.I., Shin, D.C., Park, J.S., Lee, B.T., Park, Y.J., and Song, H.J., Solid State Communications 127, 595 (2003)CrossRefGoogle Scholar
10 Gu, F., Wang, S.F., , M.K., Zhou, G.J., Xu, D., and Yuan, D.R., J.Phys. Chem. B 108, 8119 (2004)CrossRefGoogle Scholar
11 Chang, S.S., Yoon, S.O., and Park, H.J., Ceramics International 31, 405 (2005)CrossRefGoogle Scholar
12 Wang, Y., Ma, J., Ji, F., Yu, X., and Ma, H., Journal of Luminescence 114, 71 (2005)CrossRefGoogle Scholar
13 Wang, B., Yang, Y.H., Wang, C.X., and Yang, J.W., Chemical Physics Letters 407, 347 (2005)CrossRefGoogle Scholar
14 Salviati, G., Lazzarini, L., Zha, M., Grillo, V., and Carlino, E., Physica Status Solidi A 202, 2963 (2005)CrossRefGoogle Scholar
15 Watson, J., Ihokura, K., and Coles, G.S.V., Meas. Sci. Technol. 4, 711 (1993).CrossRefGoogle Scholar

Save article to Kindle

To save this article to your Kindle, first ensure coreplatform@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about saving to your Kindle.

Note you can select to save to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

Find out more about the Kindle Personal Document Service.

On the Role of Oxygen Vacancies in the Determination of the Gas-Sensing Properties of Tin-Oxide Nanowires
Available formats
×

Save article to Dropbox

To save this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you used this feature, you will be asked to authorise Cambridge Core to connect with your Dropbox account. Find out more about saving content to Dropbox.

On the Role of Oxygen Vacancies in the Determination of the Gas-Sensing Properties of Tin-Oxide Nanowires
Available formats
×

Save article to Google Drive

To save this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you used this feature, you will be asked to authorise Cambridge Core to connect with your Google Drive account. Find out more about saving content to Google Drive.

On the Role of Oxygen Vacancies in the Determination of the Gas-Sensing Properties of Tin-Oxide Nanowires
Available formats
×
×

Reply to: Submit a response

Please enter your response.

Your details

Please enter a valid email address.

Conflicting interests

Do you have any conflicting interests? *