Carbon Dots as Sensing Layer for Printed Humidity and Temperature Sensors.

Autor:	Rivadeneyra A; Department of Electronics and Computer Technology, University of Granada, 18010 Granada, Spain., Salmeron JF; Department of Electronics and Computer Technology, University of Granada, 18010 Granada, Spain., Murru F; Department of Analytical Chemistry, University of Granada, 18010 Granada, Spain., Lapresta-Fernández A; Department of Analytical Chemistry, University of Granada, 18010 Granada, Spain., Rodríguez N; Department of Electronics and Computer Technology, University of Granada, 18010 Granada, Spain., Capitan-Vallvey LF; Department of Analytical Chemistry, University of Granada, 18010 Granada, Spain., Morales DP; Department of Electronics and Computer Technology, University of Granada, 18010 Granada, Spain., Salinas-Castillo A; Department of Analytical Chemistry, University of Granada, 18010 Granada, Spain.
Jazyk:	angličtina
Zdroj:	Nanomaterials (Basel, Switzerland) [Nanomaterials (Basel)] 2020 Dec 07; Vol. 10 (12). Date of Electronic Publication: 2020 Dec 07.
DOI:	10.3390/nano10122446
Abstrakt:	This work presents an innovative application of carbon dots (Cdots) nanoparticles as sensing layer for relative humidity detection. The developed sensor is based on interdigitated capacitive electrodes screen printed on a flexible transparent polyethylene terephthalate (PET) film. Cdots are deposited on top of these electrodes. An exhaustive characterization of the nanoparticles has been conducted along with the fabrication of the sensor structure. The accompanied experiments give all the sensibility to the Cdots, showing its dependence with temperature and exciting frequency. To the best of our knowledge, this work paves the path to the use of these kind of nanoparticles in printed flexible capacitive sensors aimed to be employed in the continuously expanding Internet of Things ecosystem.
Databáze:	MEDLINE
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