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 Vol. 17; no. 14; pp. 4454 - 4459 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
New York
IEEE
15.07.2017
The Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subjects | |
Online Access | Get full text |
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Summary: | 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. |
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ISSN: | 1530-437X 1558-1748 |
DOI: | 10.1109/JSEN.2017.2710301 |