In this letter, we report on high responsivity fire detectors based on PbS colloidal quantum dots photoconductors. The devices operate in the near infrared and are equipped with a visible light silicon filter for wavelength selectivity. Devices are fabricated by a simple, low cost, and silicon compatible process based on drop casting of a ligand exchanged solution of PbS nanoparticles. The photodetectors exhibit responsivity as high as 20 A/W at 1-V bias. We exploit the combination of their high responsivity and spectral response for the development of a novel fire detector able to detect a small flame at a distance exceeding 15 m in ambient illumination.
De Iacovo, A., Venettacci, C., Colace, L., Scopa, L., & Foglia, S. (2017). High Responsivity Fire Detectors Based on PbS Colloidal Quantum Dot Photoconductors. IEEE PHOTONICS TECHNOLOGY LETTERS, 29(9), 703-706.
Titolo: | High Responsivity Fire Detectors Based on PbS Colloidal Quantum Dot Photoconductors |
Autori: | |
Data di pubblicazione: | 2017 |
Rivista: | |
Citazione: | De Iacovo, A., Venettacci, C., Colace, L., Scopa, L., & Foglia, S. (2017). High Responsivity Fire Detectors Based on PbS Colloidal Quantum Dot Photoconductors. IEEE PHOTONICS TECHNOLOGY LETTERS, 29(9), 703-706. |
Handle: | http://hdl.handle.net/11590/316850 |
Appare nelle tipologie: | 1.1 Articolo in rivista |