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PEDOT:PSS and melanin as active layers in neuromorphic devices

Grant number: 20/04721-8
Support Opportunities:Scholarships abroad - Research Internship - Post-doctor
Effective date (Start): March 01, 2022
Effective date (End): February 28, 2023
Field of knowledge:Physical Sciences and Mathematics - Physics - Condensed Matter Physics
Principal Investigator:Carlos Frederico de Oliveira Graeff
Grantee:Miguel Henrique Boratto
Supervisor: Georgios Malliaras
Host Institution: Faculdade de Ciências (FC). Universidade Estadual Paulista (UNESP). Campus de Bauru. Bauru , SP, Brazil
Research place: University of Cambridge, England  
Associated to the scholarship:17/20809-0 - Study of organic devices for application in bioelectronics, BP.PD


Flexible and biocompatible devices that emulate synaptic and neuronal functions for interaction with biological tissue are of great importance for improvement of current wearable technology. Real devices simulating synapses and small neural networks have been successfully developed based on electrochemical transistors and promise a revolution in present data storage and processing. Organic Electrochemical Transistors (OECTs) present working mechanisms and performance like real brain synapses, with relative high performance at low voltage operation. Therefore, aiming the improvement in data storage and processing, in this project the development of OECTs based on thin films of PEDOT:PSS (Poly(3,4-ethylene dioxythiophene)-poly (styrene sulfonate)) and Melanin is proposed. The PEDOT:PSS presents high performance in OECTs due to its high charge mobility and high interaction with ions at the PEDOT:PSS/electrolyte interface, and melanin as a biocompatible natural pigment with potential to improve ionic interactions, aiming future applications in bioelectronics. (AU)

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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)
FAITA, F. L.; AVILA, L. B.; SILVA, J. P. B.; BORATTO, M. H.; PLA CID, C. C.; GRAEFF, C. F. O.; GOMES, M. J. M.; MUELLER, C. K.; PASA, A. A.. bnormal resistive switching in electrodeposited Prussian White thin film. Journal of Alloys and Compounds, v. 896, . (20/04721-8, 17/20809-0)
BORATTO, MIGUEL H.; LIMA, JOAO V. M.; MALLIARAS, GEORGE G.; GRAEFF, CARLOS F. O.. Supercapacitor auto analyser: An automated data analysis software for supercapacitor characterization. JOURNAL OF ENERGY STORAGE, v. 63, p. 9-pg., . (17/20809-0, 20/04721-8, 21/03379-7, 20/12356-8)

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