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Flame Detectors Based on Semiconductor Nanocrystals
- Authors: Pevtsov D.N.1,2, Demkin D.V.2, Katsaba A.V.2,3, Gadomska A.V.1
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Affiliations:
- Federal Research Center for Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences
- Moscow Institute of Physics and Technology (National Research University)
- Lebedev Physical Institute, Russian Academy of Sciences
- Issue: Vol 57, No 4 (2023)
- Pages: 290-297
- Section: PHOTONICS
- URL: https://journals.rcsi.science/0023-1193/article/view/140002
- DOI: https://doi.org/10.31857/S0023119323040101
- EDN: https://elibrary.ru/QNZEBJ
- ID: 140002
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Abstract
The possibility of using semiconductor nanocrystals in photodetectors for optical detection of open flame has been explored. The spectral range boundaries of response of flame detectors have been concretized. In accordance with this, colloidal lead sulfide nanocrystals absorbing in the range of 1–1.5 μm have been synthesized. Photoresistors with different ligand compositions have been made from these particles. For the obtained samples, the current–voltage characteristics were measured and the photosensitivity and specific
detectivity parameters were calculated. A theoretical estimate of the flame detection range has been made for the samples. It has been shown that a photosignal can be reliably detected at a distance of more than 80 m.
About the authors
D. N. Pevtsov
Federal Research Center for Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences; Moscow Institute of Physics and Technology (National Research University)
Email: pevtsov.dn@phystech.edu
Chernogolovka, Moscow oblast, 142432 Russia; Dolgoprudnyi, Moscow oblast, 141701 Russia
D. V. Demkin
Moscow Institute of Physics and Technology (National Research University)
Email: pevtsov.dn@phystech.edu
Dolgoprudnyi, Moscow oblast, 141701 Russia
A. V. Katsaba
Moscow Institute of Physics and Technology (National Research University); Lebedev Physical Institute, Russian Academy of Sciences
Email: pevtsov.dn@phystech.edu
Dolgoprudnyi, Moscow oblast, 141701 Russia; Moscow, 119991 Russia
A. V. Gadomska
Federal Research Center for Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences
Author for correspondence.
Email: pevtsov.dn@phystech.edu
Chernogolovka, Moscow oblast, 142432 Russia
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