"Development of Organic Electronic Devices and their Application as Sensors in Aqueous Medium"

• Grant number: 11/00229-2
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: April 01, 2011
• End date: September 30, 2014
• Field of knowledge: Physical Sciences and Mathematics - Physics - Condensed Matter Physics
• Principal Investigator: Marystela Ferreira
• Grantee: Rafael Furlan de Oliveira
• Host Institution: Centro de Ciências e Tecnologias para a Sustentabilidade (CCTS). Universidade Federal de São Carlos (UFSCAR). Sorocaba , SP, Brazil
• Associated scholarship(s): 13/03857-0 - Electrolyte-gated organic field-effect transistors (EGOFETs) for fabrication of new biosensors, BE.EP.DR

Abstract

This project foresees the development and characterization of sensors and biosensors based on organic field-effect devices such as metal-insulator-semiconductor (MIS) capacitors and transistors. The materials to be used are the semiconducting polymer poly(3-hexylthiophene) (P3HT) and nanostructured thin films assembled by layer-by-layer technique.Films including different polyelectrolytes as poly(allylamine hydrochloride) (PAH), polyethyleneimine (PEI) and poly(vinyl sulfonate acid) PVS will be employed and characterized by means of spectroscopic techniques and morphological studies (using SEM and AFM) aiming the obtainment of the best structure for gate modification. The performance of the devices as sensors and biosensors in aqueous medium will be investigated using the LbL films of the same polyelectrolytes. The electrical chracterization (dc and ac) will be used to choose the best material combination as well as on the evaluation of device response acting as sensor unit.

Scientific publications

(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)

DE OLIVEIRA, RAFAEL FURLAN; CASALINI, STEFANO; CRAMER, TOBIAS; LEONARDI, FRANCESCA; FERREIRA, MARYSTELA; VINCIGUERRA, VINCENZO; CASUSCELLI, VALERIA; ALVES, NERI; MURGIA, MAURO; OCCHIPINTI, LUIGI; et al. Water-gated organic transistors on polyethylene naphthalate films. FLEXIBLE AND PRINTED ELECTRONICS, v. 1, n. 2, JUN 1 2016. (11/00229-2, 13/03857-0)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

OLIVEIRA, Rafael Furlan de. Desenvolvimento de dispositivos eletrônico-orgânicos e sua aplicação como sensores em meio aquoso. 2014. Doctoral Thesis - Universidade Estadual Paulista (Unesp). Faculdade de Ciências. Bauru Bauru.