On a heterostructure field-effect transistor (HFET) based hydrogen sensing system
| Autor: | Kun-Wei Lin, Chien Cheng Huang, Rong Chau Liu, Tai You Chen, Wen-Chau Liu, Chi Shiang Hsu, Huey-Ing Chen, Po Cheng Chou |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Hydrogen
Renewable Energy Sustainability and the Environment business.industry Transistor Energy Engineering and Power Technology chemistry.chemical_element Heterojunction Condensed Matter Physics Hydrogen sensor law.invention Fuel Technology chemistry law Optoelectronics Field-effect transistor business Sensing system Sensitivity (electronics) Electronic circuit |
| Zdroj: | International Journal of Hydrogen Energy. 36:15906-15912 |
| ISSN: | 0360-3199 |
| DOI: | 10.1016/j.ijhydene.2011.09.031 |
| Popis: | An interesting heterostructure field-effect transistor (HFET) based hydrogen sensing system is developed and demonstrated. Even at a low hydrogen concentration of 15 ppm H 2 /air, the studied sensor still exhibits high sensitivity at room temperature. Furthermore, a simple sensing system is also designed and reported. In contrast to conventional hydrogen measurement, the detecting system consists of a hydrogen sensor and some sensing circuits. This proposed hydrogen detection system is based on the micro-controller with advantages of low cost, fast response, portable, and easy operation. From experimental results, the proposed system is shown to be good for use. |
| Databáze: | OpenAIRE |
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