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Ultra-low Voltage, Self-aligned OTFTs for Frequency Applications

Published online by Cambridge University Press:  21 May 2013

Stefano Lai ,
Piero Cosseddu ,
Gian Carlo Gazzadi ,
Giovanni Martines ,
Annalisa Bonfiglio  and
Massimo Barbaro
Stefano Lai
Affiliation:
Department of Electrical and Electronic Engineering, University of Cagliari, Piazza d’Armi, 09123, Cagliari (Italy);
Piero Cosseddu
Affiliation:
Department of Electrical and Electronic Engineering, University of Cagliari, Piazza d’Armi, 09123, Cagliari (Italy); CNR – Institute of Nanoscience, S3 Centre, Via Campi 213A, 41100, Modena, Italy,
Gian Carlo Gazzadi
Affiliation:
CNR – Institute of Nanoscience, S3 Centre, Via Campi 213A, 41100, Modena, Italy,
Giovanni Martines
Affiliation:
Department of Electrical and Electronic Engineering, University of Cagliari, Piazza d’Armi, 09123, Cagliari (Italy);
Annalisa Bonfiglio
Affiliation:
Department of Electrical and Electronic Engineering, University of Cagliari, Piazza d’Armi, 09123, Cagliari (Italy); CNR – Institute of Nanoscience, S3 Centre, Via Campi 213A, 41100, Modena, Italy,
Massimo Barbaro
Affiliation:
Department of Electrical and Electronic Engineering, University of Cagliari, Piazza d’Armi, 09123, Cagliari (Italy);
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Abstract

A novel structure for Organic Thin-Film Transistor (OTFT) is here presented. The devices are fabricated using a one-mask, photolithographic self-alignment technique which can be performed with standard photoresists and without further chemical treatments. This technique, combined with a novel technology for the realization of low voltage OTFTs, allows a dramatic reduction of the parasitic capacitances thus leading to a remarkable cut-off frequency. In this paper, the main electrical parameters of low voltage, self-aligned devices are reported, and a complete frequency characterization of the devices is given. These characteristics make the reported approach suitable for the development of basic circuitries for frequency applications.

Keywords

organicthin filmsemiconducting
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1567: Symposium JJ – Fundamental Processes in Organic Electronics , 2013 , mrss13-1567-jj13-34
Copyright
Copyright © Materials Research Society 2013 

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References

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