A Light-Activated Micropower Gas Sensor for the Detection of NO2 Down to the Parts Per Billion Range
- Resource Type
- Conference
- Authors
- Casals, Olga; Markiewicz, Nicolai; Fabrega, Cristian; Gracia, Isabel; Cane, Carles; Wasisto, Hutomo Suryo; Waag, Andreas; Prades, Joan Daniel
- Source
- 2019 20th International Conference on Solid-State Sensors, Actuators and Microsystems & Eurosensors XXXIII (TRANSDUCERS & EUROSENSORS XXXIII) Solid-State Sensors, Actuators and Microsystems & Eurosensors XXXIII (TRANSDUCERS & EUROSENSORS XXXIII), 2019 20th International Conference on. :773-776 Jun, 2019
- Subject
- Bioengineering
Components, Circuits, Devices and Systems
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Power, Energy and Industry Applications
Robotics and Control Systems
Light emitting diodes
Power demand
Gas detectors
Temperature sensors
Heating systems
Gases
Gas Sensor
Conductometric
Light Activated
Micro Light Plate
NO2
ppb
micropower
microwatt
- Language
- ISSN
- 2167-0021
Based on the recently reported "micro-light-plate" configuration, we have implemented a light activated gas sensor for NO 2 operating at room temperature. With this conductometric device, we achieved detection limits down to a few parts per billion (ppb) with power consumption in the tens of microwatt range (µW). These are record values for conductometric metal-oxides (MOX) sensors activated with light (instead of heat).