Manufacture and optimization of biodegradable electronic devices

• Grant number: 22/14423-0
• Support Opportunities: Scholarships abroad - Research Internship - Post-doctor
• Start date: April 10, 2023
• End date: April 09, 2024
• Field of knowledge: Engineering - Materials and Metallurgical Engineering
• Principal Investigator: Neri Alves
• Grantee: José Diego Fernandes Dias
• Supervisor: Jeff Kettle
• Host Institution: Faculdade de Ciências e Tecnologia (FCT). Universidade Estadual Paulista (UNESP). Campus de Presidente Prudente. Presidente Prudente , SP, Brazil
• Institution abroad: University of Glasgow, Scotland
• Associated to the scholarship: 20/12060-1 - EGOFETs and Schottky diode: influence of the supramolecular arrangement on electrical properties, BP.PD

Abstract

The project developed in Brazil aims to investigate how the supramolecular arrangement of the active layer of organic thin films influences the electro-optical properties of organic field-effect transistors with electrolyte in the gate (EGOFETs) and Schottky diode. Our preliminary results suggest that the type of molecular aggregate - related to À-stacking interaction -, the preferential molecular organization and crystallinity strongly influence the mobility of charge carriers and consequently the efficiency of electronic devices, corroborating what has been observed in the literature. Based on this and verifying the current concern and effort to increase the efficiency and stability of biodegradable electronic devices that seek to replace conventional ones and reduce environmental impacts, this Research Internship Abroad (BEPE) Scholarship aims to manufacture an organic transistor field effect (OFET) fully biodegradable, stable and with high yield. To achieve this goal, poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) treated substrates with molybdenum (Mo) counts will be manufactured and optimized. Thin films of 2,6-Dihydroxyanthraquinone (2,6-DHAQ) manufactured by the physical vapor deposition (PVD) technique will be used as the active layer. The supramolecular arrangement of the 2,6-DHAQ PVD film will be determined and, if necessary, changes will be made to enhance the performance. Biodegradable OFETs will be manufactured and their electro-optical properties, stability and degradation time will be determined. This BEPE will be developed under the supervision of Prof. Jeff Kettle from the James Watt School of Engineering at the University of Glasgow, Scotland, UK. Recently Prof. Jeff has approved the project entitled "Green Energy-Optimised Printed ICs" worth £1,201,482 with which the aim is to manufacture biodegradable electronic devices. (AU)