Title :
A Temperature Transducer Based on a Low-Voltage Organic Thin-Film Transistor Detecting Pyroelectric Effect
Author :
Cosseddu, P. ; Viola, Fabio ; Lai, S. ; Raffo, Luigi ; Bonfiglio, A.
Author_Institution :
Nat. Res. Center on Nano-Struct. & Bio-Syst. at Surfaces, Inst. of Nanosci., Modena, Italy
Abstract :
In this letter, we report a novel approach for the fabrication of temperature sensors on highly flexible plastic substrates that can be operated at low voltage. Reproducible temperature sensors have been obtained by coupling a charge-modulated organic field-effect transistor with a pyroelectric element. An accurate electrical characterization shows that these devices, because of the local amplification of the organic transistor, can reliably detect temperatures in the range 10 °C-40 °C. This architecture represents a simple and innovative solution for the realization of conformable sensing systems for applications in tactile sensing as well as in wearable electronics.
Keywords :
low-power electronics; pyroelectric detectors; tactile sensors; temperature sensors; thin film transistors; transducers; flexible plastic substrates; low-voltage organic thin film transistor; organic field effect transistor; pyroelectric effect; tactile sensing; temperature 10 degC to 40 degC; temperature sensors; temperature transducer; wearable electronics; Capacitors; OFETs; Tactile sensors; Temperature measurement; Temperature sensors; Thin film transistors; Pyroelectric polymers; tactile sensing; ultra-low voltage organic FETs; wearable electronics; wearable electronics.;
Journal_Title :
Electron Device Letters, IEEE
DOI :
10.1109/LED.2014.2363045
