Gas sensors are already widely used in industry and agriculture, to ensure safety of personnel and to monitor and automate processes. However, the rising public awareness of the importance of urban indoor and outdoor air quality is now driving a demand for new accurate, low-cost and mobile gas sensor technology. Optical gas sensors are sensitive and robust, offering the highest stability and specificity in the market. However, their current cost, power consumption and size hinder them from being widely employed by the general public. ULISSES technology will enable compact, low-cost and low-power gas sensor nodes to be networked for comprehensive and real time monitoring of air quality in urban areas. This new approach will provide valuable information to city planners, employers, landlords and the general public to ensure a healthy indoor and outdoor environment.

The project partners collaborate in combining silicon photonics with 2D materials to enable fully integrated optical gas sensing nodes for the Internet of Things (IoT) that can be manufactured in large volumes at low cost and achieve performance improvements in terms of size and power consumption.