Heavily tin-doped indium oxide nano-pyramids as high-performance gas sensor

Abstract

Heavily Sn-doped In2O3nano-pyramids with a Sn percentage of 19.97% by weight have been prepared by sputtering technique. The nano-pyramids with smooth facets and a sharp tip have been achieved by deposition on Sn-metal particles, leading to a diameter of ∼100nm. The gas sensors realized from these pyramids are highly sensitive to ethanol gas, and the sensitivity is about 133.99 against 200ppm ethanol at 250°C. Good sensitivity characteristics have been obtained even at a low temperature of down to 50°C. The high response and low working temperature demonstrate the potential application of heavily Sn-doped In2O3 nano-pyramids for fabricating gas sensors.

Metadata

Authors/Creators:

Li, Q.
Zhang, Y.
Wang, Z.
Li, Y.
Ding, W.
Wang, T. https://orcid.org/0000-0001-5976-4994
Yun, F.

Copyright, Publisher and Additional Information:

© 2018 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

Dates:

Accepted: 7 November 2018
Published (online): 15 November 2018
Published: 15 November 2018

Institution:

The University of Sheffield

Academic Units:

The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Electronic and Electrical Engineering (Sheffield)

Funding Information:

Funder	Grant number
ENGINEERING AND PHYSICAL SCIENCE RESEARCH COUNCIL (EPSRC)	EP/K004220/1
ENGINEERING AND PHYSICAL SCIENCE RESEARCH COUNCIL (EPSRC)	EP/M015181/1

Depositing User:

Symplectic Sheffield

Date Deposited:

11 Jan 2019 10:21

Last Modified:

11 Jan 2019 10:21

Published Version:

https://doi.org/10.1063/1.5048622

Status:

Published

Publisher:

AIP Publishing

Refereed:

Yes

Identification Number:

https://doi.org/10.1063/1.5048622

Related URLs:

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