Micromachined nanocrystalline silver doped SnO sub(2) H sub(2)S sensor
An ultrahigh sensitive hydrogen sulfide gas sensor was developed utilizing micromachined nanocrystalline SnO sub(2)-Ag on ceramic wafer (alumina). A polymeric sol-gel process has been successfully developed in fabricating thin film SnO sub(2)-Ag nanocomposite, which shows excellent sensing character...
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| Veröffentlicht in: | Sensors and actuators. B, Chemical Chemical, 2006-03, Vol.114 (1), p.32-39 |
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| container_title | Sensors and actuators. B, Chemical |
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| creator | Gong, Jianwei Chen, Quanfang Lian, Ming-Ren Liu, Nen-Chin Stevenson, Roberts G Adami, Fatos |
| description | An ultrahigh sensitive hydrogen sulfide gas sensor was developed utilizing micromachined nanocrystalline SnO sub(2)-Ag on ceramic wafer (alumina). A polymeric sol-gel process has been successfully developed in fabricating thin film SnO sub(2)-Ag nanocomposite, which shows excellent sensing characteristics upon exposure to H sub(2)S as low as 1 ppm at working temperature as low as 70 C. This sensor also shows higher sensitivity to H sub(2)S under various humidity conditions, in comparing to commercialized H sub(2)S sensors as well as published data. The environmental influences on sensor's sensitivity and selectivity have been tested and discussed. The results show that the sensor has a good selectivity due to its less sensitive to common interference gases like Cl sub(2), HCl, SO sub(2), C sub(6)H sub(14), CH sub(4), CO, C sub(3)H sub(8), etc. |
| doi_str_mv | 10.1016/j.snb.2005.04.035 |
| format | Article |
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The results show that the sensor has a good selectivity due to its less sensitive to common interference gases like Cl sub(2), HCl, SO sub(2), C sub(6)H sub(14), CH sub(4), CO, C sub(3)H sub(8), etc.</description><identifier>ISSN: 0925-4005</identifier><identifier>DOI: 10.1016/j.snb.2005.04.035</identifier><language>eng</language><subject>Micromachining ; Micromechanics ; Nanocrystals ; Nanostructure ; Selectivity ; Sensors ; Silver ; Sol gel process</subject><ispartof>Sensors and actuators. 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A polymeric sol-gel process has been successfully developed in fabricating thin film SnO sub(2)-Ag nanocomposite, which shows excellent sensing characteristics upon exposure to H sub(2)S as low as 1 ppm at working temperature as low as 70 C. This sensor also shows higher sensitivity to H sub(2)S under various humidity conditions, in comparing to commercialized H sub(2)S sensors as well as published data. The environmental influences on sensor's sensitivity and selectivity have been tested and discussed. 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A polymeric sol-gel process has been successfully developed in fabricating thin film SnO sub(2)-Ag nanocomposite, which shows excellent sensing characteristics upon exposure to H sub(2)S as low as 1 ppm at working temperature as low as 70 C. This sensor also shows higher sensitivity to H sub(2)S under various humidity conditions, in comparing to commercialized H sub(2)S sensors as well as published data. The environmental influences on sensor's sensitivity and selectivity have been tested and discussed. The results show that the sensor has a good selectivity due to its less sensitive to common interference gases like Cl sub(2), HCl, SO sub(2), C sub(6)H sub(14), CH sub(4), CO, C sub(3)H sub(8), etc.</abstract><doi>10.1016/j.snb.2005.04.035</doi></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0925-4005 |
| ispartof | Sensors and actuators. B, Chemical, 2006-03, Vol.114 (1), p.32-39 |
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| language | eng |
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| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Micromachining Micromechanics Nanocrystals Nanostructure Selectivity Sensors Silver Sol gel process |
| title | Micromachined nanocrystalline silver doped SnO sub(2) H sub(2)S sensor |
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