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Gas sensors from organic thin-film transistors

Grant number: 13/19420-0
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): September 01, 2014
Effective date (End): May 09, 2019
Field of knowledge:Engineering - Electrical Engineering
Principal Investigator:Fernando Josepetti Fonseca
Grantee:Marco Roberto Cavallari
Home Institution: Escola Politécnica (EP). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Associated scholarship(s):15/08566-9 - Gas sensors from organic thin-film transistors, BE.EP.PD

Abstract

Research in Organic Electronics (OE) has become mandatory from the prediction that mankind has reached the limit in dimension scaling and device integration. Furthermore, if compared to the already-established inorganic microelectronics based on silicon, OE can offer countless semiconductors and low-cost deposition techniques over large area flexible substrates. Organic Thin-Film Transistors (OTFTs) are the base blocks of electronic circuits and, usually, present a field-effect device structure. Due to its easy processability, these devices offer innumerous applications, such as flexible displays, radio-frequency identification tags, textile electronics and sensors (e.g. chemical, biological and pressure). Besides, there is a demand for small, portable and cheap gadgets, mainly for in-situ medical diagnosis, environmental and food monitoring, drug delivery, chemical and biological weapons detection, and for the confection of electronic noses and tongues. In this context, the objective of this project lies in the development of sensors from organic thin-film transistors for the detection of volatile organic compounds (VOCs) in gas phase. The innovation consists in the application in OTFTs of semiconductors synthesized and provided from our scientific collaborators. The study must be composed of an investigation of environmental factors linked to device degradation, as well as each material sensitivity and specificity to VOCs.

Scientific publications (4)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
CAVALLARI, MARCO R.; BRAGA, GUILHERME S.; DA SILVA, MAURO F. P.; IZQUIERDO, JOSE E. E.; PATERNO, LEONARDO G.; DIRANI, ELY A. T.; KYMISSIS, IOANNIS; FONSECA, FERNANDO J. A Hybrid Electronic Nose and Tongue for the Detection of Ketones: Improved Sensor Orthogonality Using Graphene Oxide-Based Detectors. IEEE SENSORS JOURNAL, v. 17, n. 7, p. 1971-1980, APR 1 2017. Web of Science Citations: 8.
PINHEIRO DA SILVA, MAURO FRANCISCO; DE OLIVEIRA, DEBORA ROSE; CAVALLARI, MARCO ROBERTO; TADEU DIRANI, ELY ANTONIO; TRIBONI, EDUARDO REZENDE; PATERNO, LEONARDO GIORDANO; FONSECA, FERNANDO JOSEPETTI; ANDO, ROMULO AUGUSTO; BAPTISTA, MAURICIO DA SILVA; LANDERS, RICHARD; POLITI, MARIO JOSE; ISOLANI, PAULO CELSO; BERNARDO LENZ E SILVA, GUILHERME FREDERICO. A simple visible light photo-assisted method for assembling and curing multilayer GO thin films. Materials Chemistry and Physics, v. 165, p. 125-133, SEP 1 2015. Web of Science Citations: 2.
CAVALLARI, MARCO R.; ZANCHIN, VINICIUS R.; VALLE, MARCIO A.; IZQUIERDO, JOSE. E.; RODRIGUEZ, EDUARDO M.; RODRIGUEZ, ESTRELLA F. G.; PEREIRA-DA-SILVA, MARCELO A.; FONSECA, FERNANDO J. On the Performance Degradation of Poly(3-Hexylthiophene) Field-Effect Transistors. IEEE TRANSACTIONS ON DEVICE AND MATERIALS RELIABILITY, v. 15, n. 3, p. 342-351, SEP 2015. Web of Science Citations: 2.
CAVALLARI, MARCO R.; IZQUIERDO, JOSE E. E.; BRAGA, GUILHERME S.; DIRANI, ELY A. T.; PEREIRA-DA-SILVA, MARCELO A.; RODRIGUEZ, ESTRELLA F. G.; FONSECA, FERNANDO J. Enhanced Sensitivity of Gas Sensor Based on Poly(3-hexylthiophene) Thin-Film Transistors for Disease Diagnosis and Environment Monitoring. SENSORS, v. 15, n. 4, p. 9592-9609, APR 2015. Web of Science Citations: 23.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.