Next Article in Journal
An Energy-Efficient Approach to Enhance Virtual Sensors Provisioning in Sensor Clouds Environments
Previous Article in Journal
Lab-on-a-Disc Platform for Automated Chemical Cell Lysis
Article Menu
Issue 3 (March) cover image

Export Article

Open AccessArticle
Sensors 2018, 18(3), 688; https://doi.org/10.3390/s18030688

Floating Gate, Organic Field-Effect Transistor-Based Sensors towards Biomedical Applications Fabricated with Large-Area Processes over Flexible Substrates

Department of Electrical and Electronic Engineering, University of Cagliari, Piazza d’Armi, 09123 Cagliari, Italy
*
Author to whom correspondence should be addressed.
Received: 5 February 2018 / Revised: 15 February 2018 / Accepted: 20 February 2018 / Published: 26 February 2018
(This article belongs to the Special Issue Inkjet Production of Sensors)
View Full-Text   |   Download PDF [1766 KB, uploaded 26 February 2018]   |  

Abstract

Organic Field-Effect Transistors (OFETs) are attracting a rising interest for the development of novel kinds of sensing platforms. In this paper, we report about a peculiar sensor device structure, namely Organic Charge-Modulated Field-Effect Transistor (OCMFET), capable of operating at low voltages and entirely fabricated with large-area techniques, i.e., inkjet printing and chemical vapor deposition, that can be easily upscaled to an industrial size. Device fabrication is described, and statistical characterization of the basic electronic parameters is reported. As an effective benchmark for the application of large-area fabricated OCMFET to the biomedical field, its combination with pyroelectric materials and compressible capacitors is discussed, in order to employ the proposed device as a temperature pressure sensor. The obtained sensors are capable to operate in conditions which are relevant in the biomedical field (temperature in the range of 18.5–50 °C, pressure in the range of 102–103 Pa) with reproducible and valuable performances, opening the way for the fabrication of low-cost, flexible sensing platforms. View Full-Text
Keywords: inkjet printing; chemical vapor deposition; OTFTs; temperature sensing; pressure sensing inkjet printing; chemical vapor deposition; OTFTs; temperature sensing; pressure sensing
Figures

Graphical abstract

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Supplementary material

SciFeed

Share & Cite This Article

MDPI and ACS Style

Lai, S.; Viola, F.A.; Cosseddu, P.; Bonfiglio, A. Floating Gate, Organic Field-Effect Transistor-Based Sensors towards Biomedical Applications Fabricated with Large-Area Processes over Flexible Substrates. Sensors 2018, 18, 688.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top