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Study of polymers structure-property relationship and its applications to organic electronics sensor devices

Grant number: 16/23305-0
Support Opportunities:Scholarships abroad - Research Internship - Doctorate
Effective date (Start): May 01, 2017
Effective date (End): April 30, 2018
Field of knowledge:Engineering - Electrical Engineering
Principal Investigator:Marcelo Mulato
Grantee:Hugo José Nogueira Pedroza Dias Mello
Supervisor: Emil J.W. List-Kratochvil
Host Institution: Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto (FFCLRP). Universidade de São Paulo (USP). Ribeirão Preto , SP, Brazil
Research place: Humboldt University, Germany  
Associated to the scholarship:14/24559-0 - Multimodal array of enzymatic biosensors: potentiometric differential mode, optical and conductometric., BP.DR


Conducting and conjugated polymers are of great importance for several applications. Among the possible applications, the use of these polymers as active-sensing stage in chemical sensors and biosensors is well stablished. The main reason is that the electrical and optical properties of the polymeric material change as function of the protonation/de-protonation process that occurs when it is in a chemical environment. The variation of those properties depends on the initial characteristics of the material, which is defined by the synthesis methods and parameters. In this way, it is important to understand the structure-property relationship of conducting and conjugated polymers, from the determination of energy band levels, work function and conduction process as function of polymeric production, and how they affect the materials conductivity and electrochromism. Organic electronics combines the organic materials with the possibility of property optimization, thus allowing for the development of new devices. Organic field-effect transistors and organic electrochemical transistors are some of those new devices with great interest because they combine advantages of field-effect transistors with those of electroactive organic materials enabling the development of sensor devices. From the polymerics materials, and the organic electronics techniques for devices fabrication we can obtain sensors and biosensors devices. (AU)

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