This paper reports the innovative use of a highly tunable material, metal-organic frameworks (MOFs), for chemical sensing on an ultra-low-power platform based on a field-effect transistor. We demonstrate proof-of-principle devices functionalized with two MOFs: "HKUST-1" for humidity sensing and "ZIF-8" for reversible NO 2 detection. These devices show minimal drift, yield highly reproducible responses, recover rapidly, and have excellent selectivity. Through this approach, devices with minimal power draw and high selectivity could be widely distributed for continuous environmental and safety monitoring.
June 23, 2019
Conference Paper (Proceedings)
D. W. Gardner, X. Gao, H. M. Fahad, A.-T. Yang, S. He, A. Javey, C. Carraro, and R. Maboudian, “Scalable ultra Low-power chemical sensing with Metal-Organic Frameworks,” 2019 20th International Conference on Solid-State Sensors, Actuators and Microsystems & Eurosensors XXXIII (TRANSDUCERS & EUROSENSORS XXXIII), 2019.