Title :
Ultralow Voltage Pressure Sensors Based on Organic FETs and Compressible Capacitors
Author :
Lai, S. ; Cosseddu, P. ; Bonfiglio, A. ; Barbaro, Massimo
Author_Institution :
Department of Electrical and Electronic Engineering, University of Cagliari, Cagliari, Italy
Abstract :
A novel structure for the fabrication of organic pressure sensors is presented. It is based on a polydimethylsiloxane capacitor integrated with a floating-gate organic field-effect transistor (OFET) able to operate at ultralow voltages. The thin-film device, fabricated on a flexible substrate, is specifically conceived for tactile sensing. The main novelty of the working principle consists in the physical separation between the pressure-sensitive area and the active area of the OFET. The complete characterization of the device, in response to the application of different pressures, is provided.
Keywords :
Organic FETs; pressure sensor; thin-film devices; ultralow voltage devices;
Journal_Title :
Electron Device Letters, IEEE
DOI :
10.1109/LED.2013.2257660
