Optical and Electronic NOx Sensors for Applications in Mechatronics
AbstractCurrent production and emerging NOx sensors based on optical and nanomaterials technologies are reviewed. In view of their potential applications in mechatronics, we compared the performance of: i) Quantum cascade lasers (QCL) based photoacoustic (PA) systems; ii) gold nanoparticles as catalytically active materials in field-effect transistor (FET) sensors, and iii) functionalized III-V semiconductor based devices. QCL-based PA sensors for NOx show a detection limit in the sub part-per-million range and are characterized by high selectivity and compact set-up. Electrochemically synthesized gold-nanoparticle FET sensors are able to monitor NOx in a concentration range from 50 to 200 parts per million and are suitable for miniaturization. Porphyrin-functionalized III-V semiconductor materials can be used for the fabrication of a reliable NOx sensor platform characterized by high conductivity, corrosion resistance, and strong surface state coupling.
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Di Franco, C.; Elia, A.; Spagnolo, V.; Scamarcio, G.; Lugarà, P.M.; Ieva, E.; Cioffi, N.; Torsi, L.; Bruno, G.; Losurdo, M.; Garcia, M.A.; Wolter, S.D.; Brown, A.; Ricco, M. Optical and Electronic NOx Sensors for Applications in Mechatronics. Sensors 2009, 9, 3337-3356.
Di Franco C, Elia A, Spagnolo V, Scamarcio G, Lugarà PM, Ieva E, Cioffi N, Torsi L, Bruno G, Losurdo M, Garcia MA, Wolter SD, Brown A, Ricco M. Optical and Electronic NOx Sensors for Applications in Mechatronics. Sensors. 2009; 9(5):3337-3356.Chicago/Turabian Style
Di Franco, Cinzia; Elia, Angela; Spagnolo, Vincenzo; Scamarcio, Gaetano; Lugarà, Pietro Mario; Ieva, Eliana; Cioffi, Nicola; Torsi, Luisa; Bruno, Giovanni; Losurdo, Maria; Garcia, Michael A.; Wolter, Scott D.; Brown, April; Ricco, Mario. 2009. "Optical and Electronic NOx Sensors for Applications in Mechatronics." Sensors 9, no. 5: 3337-3356.