PbS Colloidal Quantum Dot Visible-Blind Photodetector for Early Indoor Fire Detection

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 monoch...

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Published in:IEEE sensors journal 2017-07, Vol.17 (14), p.4454-4459
Main Authors: De Iacovo, Andrea, Venettacci, Carlo, Colace, Lorenzo, Scopa, Leonardo, Foglia, Sabrina
Format: Article
Language:English
Subjects:
Colloids
Detectors
Field of view
Fire alarms
Fire detection
Lead
Lenses
near infrared photodetectors
Noise prediction
Optical fire detector
Optical sensors
PbS colloidal quantum dot
Photoconducting materials
Photodetectors
Quantum dots
Signal to noise ratio
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cited_by cdi_FETCH-LOGICAL-c336t-8c79484d1a4e26a4293a42970e9a3739b90a2f1727bd280485cce9c7281ba2b43
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creator De Iacovo, Andrea
Venettacci, Carlo
Colace, Lorenzo
Scopa, Leonardo
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description 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.
doi_str_mv 10.1109/JSEN.2017.2710301
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source IEEE Electronic Library (IEL) Journals
subjects Colloids
Detectors
Field of view
Fire alarms
Fire detection
Lead
Lenses
near infrared photodetectors
Noise prediction
Optical fire detector
Optical sensors
PbS colloidal quantum dot
Photoconducting materials
Photodetectors
Quantum dots
Signal to noise ratio
title PbS Colloidal Quantum Dot Visible-Blind Photodetector for Early Indoor Fire Detection
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