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Study of printed supercapacitors integrating electrolyte-gated transistors

Grant number: 18/02604-4
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): May 01, 2018
Effective date (End): April 30, 2022
Field of knowledge:Engineering - Materials and Metallurgical Engineering
Principal researcher:Neri Alves
Grantee:Maykel dos Santos Klem
Home Institution: Faculdade de Ciências e Tecnologia (FCT). Universidade Estadual Paulista (UNESP). Campus de Presidente Prudente. Presidente Prudente , SP, Brazil


The current development in printed electronics and the advancement of light, thin and flexible electronic devices require switching and energy storage devices with these same characteristics. In this context, devices printed on flexible substrates, such as paper and PET, have attracted much attention nowadays. The molybdenum disulphide, which is a transition metal dichalcogenide, has been considered as a substitute for graphene due its 2D strutucutre (nanosheets) and mainly because it has an intrinsic 1.8 eV bandgap. These characteristics makes MoS2 an interesting material for applications in electrolyte-gated transistors and supercapacitors. In addition to bandgap, its structure has a large specific area, enhancing the formation of electric double layer in such devices. The main objective of this project is to produce and characterize printed supercapacitors integrating electrolyte-gated transistors in the same structure, using MoS2 as main material. This hybrid device will bring applications in the development of circuits with fully printed, lightweight and flexible elements, which meets the demand of the current scenario of electronics. (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)
DOS SANTOS KLEM, MAYKEL; LEONARDO NOGUEIRA, GABRIEL; ALVES, NERI. High-performance symmetric supercapacitor based on molybdenum disulfide/poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) composite electrodes deposited by spray-coating. INTERNATIONAL JOURNAL OF ENERGY RESEARCH, JAN 2021. Web of Science Citations: 0.
KLEM, MAYKEL DOS SANTOS; MORAIS, ROGERIO MIRANDA; GONCALVES RUBIRA, RAFAEL JESUS; ALVES, NERI. Paper-based supercapacitor with screen-printed poly (3, 4-ethylene dioxythiophene)-poly (styrene sulfonate)/multiwall carbon nanotube films actuating both as electrodes and current collectors. Thin Solid Films, v. 669, p. 96-102, JAN 1 2019. Web of Science Citations: 2.

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