Carbon Dots as Sensing Layer for Printed Humidity and Temperature Sensors
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Rivadeneyra Torres, Almudena; Fernández Salmerón, José; Murru, Fabio; Lapresta Fernández, Alejandro; Rodríguez Santiago, Noel; Capitán Vallvey, Luis Fermín; Morales Santos, Diego Pedro; Salinas Castillo, AlfonsoEditorial
Mdpi
Materia
Capacitive sensors Moisture content Nanomaterials Screen printing Printed electronics
Date
2020-12-07Referencia bibliográfica
Rivadeneyra, A., Salmeron, J. F., Murru, F., Lapresta-Fernández, A., Rodríguez, N., Capitan-Vallvey, L. F., ... & Salinas-Castillo, A. (2020). Carbon Dots as Sensing Layer for Printed Humidity and Temperature Sensors. Nanomaterials, 10(12), 2446. [doi:10.3390/nano10122446]
Sponsorship
European Commission European Commission Joint Research CentreAbstract
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.