Ultrasensitive gas sensor based on epitaxial graphene on SiC has been fabricated. The sensor exhibits strong and reproducible response to nitrogen dioxide (NO2) in the concentration in air down to 1 part-per billion (ppb). Prototype of the transportable device for environmental monitoring allows fast and reproducible measurements of NO2 concentration in the range typical for environmental pollution (5 ppb - 50 ppb).
- nitrogen dioxide
Novikov, S., Lebedeva, N., Satrapinski, A., & Walden, J. (2015). Graphene based sensor for environmental monitoring of NO2. Procedia Engineering, 120, 586-589. https://doi.org/10.1016/j.proeng.2015.08.731