Optical and Electronic NO(x) Sensors for Applications in Mechatronics.
Current production and emerging NO(x) sensors based on optical and nanomaterials technologies are reviewed. In view of their potential applications in mechatronics, we compared the performance of: i) Quantum cascade lasers (QCL) based photoacoustic (PA) systems; ii) gold nanoparticles as catalytically active materials in field-effect transistor (FET) sensors, and iii) functionalized III-V semiconductor based devices. QCL-based PA sensors for NO(x) show a detection limit in the sub part-per-million range and are characterized by high selectivity and compact set-up. Electrochemically synthesized gold-nanoparticle FET sensors are able to monitor NO(x) in a concentration range from 50 to 200 parts per million and are suitable for miniaturization. Porphyrin-functionalized III-V semiconductor materials can be used for the fabrication of a reliable NO(x) sensor platform characterized by high conductivity, corrosion resistance, and strong surface state coupling.
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Related Subject Headings
- Analytical Chemistry
- 4606 Distributed computing and systems software
- 4104 Environmental management
- 4009 Electronics, sensors and digital hardware
- 4008 Electrical engineering
- 3103 Ecology
- 0906 Electrical and Electronic Engineering
- 0805 Distributed Computing
- 0602 Ecology
- 0502 Environmental Science and Management
Citation
Published In
DOI
EISSN
ISSN
Publication Date
Volume
Issue
Start / End Page
Related Subject Headings
- Analytical Chemistry
- 4606 Distributed computing and systems software
- 4104 Environmental management
- 4009 Electronics, sensors and digital hardware
- 4008 Electrical engineering
- 3103 Ecology
- 0906 Electrical and Electronic Engineering
- 0805 Distributed Computing
- 0602 Ecology
- 0502 Environmental Science and Management