We report on a novel optical fire detector based on a PbS colloidal quantum dot photodetector. The sensor is realized with a simple, cost effective, drop casting technique. The photodetector is characterized in terms of its electrical characteristics, responsivity, and specific detectivity to monochromatic light. We demonstrate effective indoor fire detection at a distance exceeding 20 m with a 120° field of view. We also show a twofold improvement of the detector signal to noise ratio exploiting a short focal lens.
DE IACOVO, A., Venettacci, C., Colace, L., Scopa, L., Foglia, S. (2017). PbS colloidal quantum dot visible-blind photodetector for early indoor fire detection. IEEE SENSORS JOURNAL, 17(14), 4454-4459 [10.1109/JSEN.2017.2710301].
PbS colloidal quantum dot visible-blind photodetector for early indoor fire detection
DE IACOVO, ANDREA;Venettacci, Carlo;COLACE, Lorenzo;
2017-01-01
Abstract
We report on a novel optical fire detector based on a PbS colloidal quantum dot photodetector. The sensor is realized with a simple, cost effective, drop casting technique. The photodetector is characterized in terms of its electrical characteristics, responsivity, and specific detectivity to monochromatic light. We demonstrate effective indoor fire detection at a distance exceeding 20 m with a 120° field of view. We also show a twofold improvement of the detector signal to noise ratio exploiting a short focal lens.| File | Dimensione | Formato | |
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