In this work we report about the fabrication and characterization of mechanical sensors based on highly flexible, low voltage Organic Thin Film Transistor. The fabricated devices are characterized by a linear and reproducible response to surface strain from 0 to 2%. Thanks to their mechanical properties, they are good candidates for the fabrication of smart clothes and for local monitoring of bio-mechanical parameters, such as joints motion and/or breathing rate. On the other hand, we will also demonstrate that this response to mechanical deformation can be almost eliminated by properly engineering the device structure. In particular, using an ultra-thin plastic substrate allows the reduction of the surface strain induced on the device sensing area. As a result, in this way, it is possible to have highly compliant and mechanically stable electronic devices.

Highly flexible and low voltage Organic Thin Film Transistors for wearable electronics and e-skin applications

Cosseddu, Piero
Primo
;
Lai, Stefano
Secondo
;
Bonfiglio, Annalisa
Ultimo
2015-01-01

Abstract

In this work we report about the fabrication and characterization of mechanical sensors based on highly flexible, low voltage Organic Thin Film Transistor. The fabricated devices are characterized by a linear and reproducible response to surface strain from 0 to 2%. Thanks to their mechanical properties, they are good candidates for the fabrication of smart clothes and for local monitoring of bio-mechanical parameters, such as joints motion and/or breathing rate. On the other hand, we will also demonstrate that this response to mechanical deformation can be almost eliminated by properly engineering the device structure. In particular, using an ultra-thin plastic substrate allows the reduction of the surface strain induced on the device sensing area. As a result, in this way, it is possible to have highly compliant and mechanically stable electronic devices.
2015
978-1-4673-8155-0
compliant devices; flexible elecronics; Organic Thin Film Transistors; Strain Sensors; Process Chemistry and Technology; Electrical and Electronic Engineering; Ceramics and Composites; Electronic, Optical and Magnetic Materials; Surfaces, Coatings and Films
File in questo prodotto:
File Dimensione Formato  
07388876.pdf

Solo gestori archivio

Tipologia: versione editoriale
Dimensione 214.42 kB
Formato Adobe PDF
214.42 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11584/241567
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 2
  • ???jsp.display-item.citation.isi??? 2
social impact