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An Ultrahigh Sensitivity Acetone Sensor Enhanced by Light Illumination
Au:SmFe(0.9)Zn(0.1)O(3) is synthesized by a sol-gel method and annealed at 750 °C. Through XRD, SEM and XPS analysis methods, the microstructure of the material has been observed. The average particle size is about 50 nm. The sensor shows a high sensitivity toward acetone vapor. As the relative humi...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6068944/ https://www.ncbi.nlm.nih.gov/pubmed/30018252 http://dx.doi.org/10.3390/s18072318 |
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author | Zhang, Heng Qin, Hongwei Gao, Chengyong Hu, Jifan |
author_facet | Zhang, Heng Qin, Hongwei Gao, Chengyong Hu, Jifan |
author_sort | Zhang, Heng |
collection | PubMed |
description | Au:SmFe(0.9)Zn(0.1)O(3) is synthesized by a sol-gel method and annealed at 750 °C. Through XRD, SEM and XPS analysis methods, the microstructure of the material has been observed. The average particle size is about 50 nm. The sensor shows a high sensitivity toward acetone vapor. As the relative humidity increases, the resistance and sensitivity of the sensor decline. To obtain a low optimum operating temperature, light illumination with different wavelengths has been introduced. The sensitivity toward acetone is improved at lower operating temperature when the sensor is irradiated by light. The smaller the wavelengths, the better the sensitivity of the sensor. Compared with other gases, the sensor shows excellent selectivity to acetone vapor, with better sensitivity, selectivity and stability when under light illumination. |
format | Online Article Text |
id | pubmed-6068944 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-60689442018-08-07 An Ultrahigh Sensitivity Acetone Sensor Enhanced by Light Illumination Zhang, Heng Qin, Hongwei Gao, Chengyong Hu, Jifan Sensors (Basel) Article Au:SmFe(0.9)Zn(0.1)O(3) is synthesized by a sol-gel method and annealed at 750 °C. Through XRD, SEM and XPS analysis methods, the microstructure of the material has been observed. The average particle size is about 50 nm. The sensor shows a high sensitivity toward acetone vapor. As the relative humidity increases, the resistance and sensitivity of the sensor decline. To obtain a low optimum operating temperature, light illumination with different wavelengths has been introduced. The sensitivity toward acetone is improved at lower operating temperature when the sensor is irradiated by light. The smaller the wavelengths, the better the sensitivity of the sensor. Compared with other gases, the sensor shows excellent selectivity to acetone vapor, with better sensitivity, selectivity and stability when under light illumination. MDPI 2018-07-17 /pmc/articles/PMC6068944/ /pubmed/30018252 http://dx.doi.org/10.3390/s18072318 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Zhang, Heng Qin, Hongwei Gao, Chengyong Hu, Jifan An Ultrahigh Sensitivity Acetone Sensor Enhanced by Light Illumination |
title | An Ultrahigh Sensitivity Acetone Sensor Enhanced by Light Illumination |
title_full | An Ultrahigh Sensitivity Acetone Sensor Enhanced by Light Illumination |
title_fullStr | An Ultrahigh Sensitivity Acetone Sensor Enhanced by Light Illumination |
title_full_unstemmed | An Ultrahigh Sensitivity Acetone Sensor Enhanced by Light Illumination |
title_short | An Ultrahigh Sensitivity Acetone Sensor Enhanced by Light Illumination |
title_sort | ultrahigh sensitivity acetone sensor enhanced by light illumination |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6068944/ https://www.ncbi.nlm.nih.gov/pubmed/30018252 http://dx.doi.org/10.3390/s18072318 |
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