Hydrogen Gas Sensor Based on SbxOy Nanostructures with a Langasite Substrate
We have developed gas sensors with antimony oxide nanostructured thin films based on a langasite (LGS) substrate and gold electrodes. Nano-trapezoids and nanorods have been synthesized on langasite and gold surfaces, respectively. With gold (Au) catalyst assistance, these nanoscale structures were grown using the thermal evaporation method. The morphology of the as-synthesized nanoscale structures were characterised using Scanning Electron Microscopy (SEM), X-Ray Diffraction (XRD), and Energy Dispersive X-Ray (EDX). It was observed that the nanorods have a diameter of 30 to 50 nm and a length up to 750 nm. Meanwhile, for nano-trapezoids, the widths are in a range of 150 to 200 nm, heights in a range of 50 to 140 nm and the length is up to 300 nm. The possible mechanism of SbxOy nanostructures formation is discussed in this report. This sensor has been used for hydrogen (H2) sensing. Response and recovery times and device sensitivity have been measured and the results were discussed.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
Document Type: Research Article
Publication date: 2006-12-01
More about this publication?
- The growing interest and activity in the field of sensor technologies requires a forum for rapid dissemination of important results: Sensor Letters is that forum. Sensor Letters offers scientists, engineers and medical experts timely, peer-reviewed research on sensor science and technology of the highest quality. Sensor Letters publish original rapid communications, full papers and timely state-of-the-art reviews encompassing the fundamental and applied research on sensor science and technology in all fields of science, engineering, and medicine. Highest priority will be given to short communications reporting important new scientific and technological findings.
- Editorial Board
- Information for Authors
- Subscribe to this Title
- Terms & Conditions
- Ingenta Connect is not responsible for the content or availability of external websites