Biasing Voltage Dependence of Sensitivity of Electron Beam Evaporated SnO2 Thin Film CO Sensor
Thin films of tin oxide were deposited by electron beam evaporation. The effectsof the sensor biasing voltage and film thickness on the CO-sensing of tin oxide thin filmswere investigated. The films were characterized using X-ray diffraction and X-rayphotoelectron spectroscopy All the films were fou...
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| Format: | Article |
| Language: | English |
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MDPI AG
2006-09-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/6/9/1153/ |
| _version_ | 1798039971061301248 |
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| author | Sardar M. Ayub Durrani |
| author_facet | Sardar M. Ayub Durrani |
| author_sort | Sardar M. Ayub Durrani |
| collection | DOAJ |
| description | Thin films of tin oxide were deposited by electron beam evaporation. The effectsof the sensor biasing voltage and film thickness on the CO-sensing of tin oxide thin filmswere investigated. The films were characterized using X-ray diffraction and X-rayphotoelectron spectroscopy All the films were found to be amorphous. The current-voltagecharacteristic of the sensor in air has shown that semiconductor-metal interface formsSchottky barrier. It was found that the CO-sensing properties depend on the sensor biasingvoltage and film thickness. For lower biasing voltages the sensitivity was much higher thanfor the higher voltages. It was found that the sensitivity of the films to CO increased withthe film thickness. |
| first_indexed | 2024-04-11T22:01:03Z |
| format | Article |
| id | doaj.art-1b0038f9fe08463ebfeaf15121009438 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T22:01:03Z |
| publishDate | 2006-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-1b0038f9fe08463ebfeaf151210094382022-12-22T04:00:56ZengMDPI AGSensors1424-82202006-09-01691153116010.3390/s6091153Biasing Voltage Dependence of Sensitivity of Electron Beam Evaporated SnO2 Thin Film CO SensorSardar M. Ayub DurraniThin films of tin oxide were deposited by electron beam evaporation. The effectsof the sensor biasing voltage and film thickness on the CO-sensing of tin oxide thin filmswere investigated. The films were characterized using X-ray diffraction and X-rayphotoelectron spectroscopy All the films were found to be amorphous. The current-voltagecharacteristic of the sensor in air has shown that semiconductor-metal interface formsSchottky barrier. It was found that the CO-sensing properties depend on the sensor biasingvoltage and film thickness. For lower biasing voltages the sensitivity was much higher thanfor the higher voltages. It was found that the sensitivity of the films to CO increased withthe film thickness.http://www.mdpi.com/1424-8220/6/9/1153/Thin filmCO sensorSnO2Semiconductor sensor |
| spellingShingle | Sardar M. Ayub Durrani Biasing Voltage Dependence of Sensitivity of Electron Beam Evaporated SnO2 Thin Film CO Sensor Sensors Thin film CO sensor SnO2 Semiconductor sensor |
| title | Biasing Voltage Dependence of Sensitivity of Electron Beam Evaporated SnO2 Thin Film CO Sensor |
| title_full | Biasing Voltage Dependence of Sensitivity of Electron Beam Evaporated SnO2 Thin Film CO Sensor |
| title_fullStr | Biasing Voltage Dependence of Sensitivity of Electron Beam Evaporated SnO2 Thin Film CO Sensor |
| title_full_unstemmed | Biasing Voltage Dependence of Sensitivity of Electron Beam Evaporated SnO2 Thin Film CO Sensor |
| title_short | Biasing Voltage Dependence of Sensitivity of Electron Beam Evaporated SnO2 Thin Film CO Sensor |
| title_sort | biasing voltage dependence of sensitivity of electron beam evaporated sno2 thin film co sensor |
| topic | Thin film CO sensor SnO2 Semiconductor sensor |
| url | http://www.mdpi.com/1424-8220/6/9/1153/ |
| work_keys_str_mv | AT sardarmayubdurrani biasingvoltagedependenceofsensitivityofelectronbeamevaporatedsno2thinfilmcosensor |