In this paper we propose totally flexible organic field effect transistors (OFETs) assembled on plastic films as sensors for mechanical variables. First mechanical sensors for pressure and bending detection are presented. A sharp and reversible sensitivity of the output current of the device to an elastic deformation induced by means of a mechanical stimulus on the device channel has been observed and suggested the idea of employing arrays of such sensors for detecting the deformation applied onto a planar surface. Second the possibility of using similar devices for bio- and chemo-detection is described. By exploiting the properties of the basic structure, the device can be combined with any kind of substrate to detect for instance the pressure applied by people walking or standing on a functionalized carpet. This emerging technology seems to be promising for applications in the field of remote and non invasive monitoring of elderly and disabled people.
Inkjet printed arrays of pressure sensors based on all-organic field effect transistors / Laura Basiricò; Piero Cosseddu; Annalisa Bonfiglio; Rohan Neelgund; Harry W. Tyrer. - ELETTRONICO. - (2010), pp. 5626235.2111-5626235.2114. (Intervento presentato al convegno 2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10 tenutosi a Buenos Aires nel Aug. 31 2010-Sept. 4 2010) [10.1109/IEMBS.2010.5626235].
Inkjet printed arrays of pressure sensors based on all-organic field effect transistors
BASIRICO', LAURA;
2010
Abstract
In this paper we propose totally flexible organic field effect transistors (OFETs) assembled on plastic films as sensors for mechanical variables. First mechanical sensors for pressure and bending detection are presented. A sharp and reversible sensitivity of the output current of the device to an elastic deformation induced by means of a mechanical stimulus on the device channel has been observed and suggested the idea of employing arrays of such sensors for detecting the deformation applied onto a planar surface. Second the possibility of using similar devices for bio- and chemo-detection is described. By exploiting the properties of the basic structure, the device can be combined with any kind of substrate to detect for instance the pressure applied by people walking or standing on a functionalized carpet. This emerging technology seems to be promising for applications in the field of remote and non invasive monitoring of elderly and disabled people.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.