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Novel ultra-precise sensors based on Mott insulators

With the internet of things (IOT) and the trillion-sensor vision, the amount of sensors that accompany us is exponentially growing to reach 2000 sensors per person by 2025. Besides an increased desire to better control everything in our environment, there is a strong interest in monitoring personal well-being and health issues. These trends require the development of ever more sensitive, compact and energy efficient sensors preferentially sensitive to several environmental parameters at the same time. Recently, we have demonstrated that Mott insulators (that show a metal to insulator transition) have a 1000-fold larger piezo-resistive response than state-of-the-art doped silicon while simultaneously showing large piezo-refractive and piezo-dielectric coefficients and thus enabling novel transduction mechanisms. In this project, the main goal is to use Mott insulators for a new generation of ultra-sensitive multimodal devices including pressure sensors, accelerometers and resonators for applications in the IOT, automotive and biomedical fields.
Date:1 Oct 2018  →  Today
Keywords:Mott-insulator, phase transition, pressure sensors, high precision micro/nano-sensors, piezoresistor
Disciplines:Condensed matter physics and nanophysics, Applied mathematics in specific fields, Geophysics, Physical geography and environmental geoscience, Other earth sciences, Aquatic sciences, challenges and pollution , Geomatic engineering