Development of ultra-low-power, high-reliability gas sensor technology based on mid-infrared optical devices

Our research project aims to develop ultra-low-power, high-reliability gas sensor technology capable of detecting CO, CO₂, and CH₄ gases. This technology leverages advanced mid-infrared optical devices, including InAsSb photodetectors (PD), integrated cavity light-emitting diodes (ICLED), and quantum bolometric photodetectors. The bandgap of our selected quantum materials ranges from 0.25 to 0.35 eV. We innovatively combine “photon” and “thermal” detection mechanisms to enhance photodetection performance within this specific spectral range. Future manufacturing will use standard thin-film silicon as the platform. Remarkably, our approach appears to be the first to utilize both detection mechanisms simultaneously, as there is no existing intellectual property covering this combination.

Team Members