Graduated in Physics by Faculty of Sciences of Barretos (1984), Master (1987) and PhD (1992) in Applied Physics by the Institute of Physics of São Carlos, and postdoctoral by Bangor University, Wales, UK (2006-2007). He works in the Department of Physics, Faculty of the Science and Technology, FCT-UNESP (2010) and has experience in physics, with emphasis on dielectric materials and dielectric properties. Currently, he is dedicated to organic electronics and printed electronics, especially to the study of devices such as transistors (TFT), diodes, capacitors and their applications as sensors. (Source: Lattes Curriculum)
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The silicon electronics have shaped the modern society inseparable from everyone daily life. However, this technology is not compatible with the demand for the implementation of a low-cost electronics that produce lightweight, flexible, transparent and large-area devices. In this context, printed electronics emerges as an alternative that aims to meet the aforementioned demands and that a…
ZnO thin films produced by the pyrolysis of zinc acetate dihydrate, sprayed on heated substrates, are naturally n-doped due to structural defects like oxygen vacancy, interstitial zinc, and others. Since the ZnO band gap is about 3.3 eV, ultraviolet radiation (UVR) photons can generate electron-hole pairs, increasing the number of electrons in the conduction band. These photo-generated el…
The development of inverter circuits represents one important research topics on organic electronics, since they are the building blocks for digital electronics. The production of flexible and printable circuits has been attracting even more attention due to its technological power on several applications, such as displays. The inverter circuits that exhibit the best performances and stab…
(Only some records are available in English at this moment)
Sustainable printed electronics is an area that seeks to reduce the environmental impact of electronic device production and disposal. Printed electronics use printing techniques on materials such as paper, polymer, and fabric to create electronic circuits and components. In addition, printed electronics offer the possibility of creating lighter, more flexible, and portable devices that c…
Transistor is an element of great importance for electronics, being responsible for functions such as signal amplification and switching. In the context of the electronics alternative to silicon, there is a demand for transistors that can be printed, flexible, transparent, organic or obtained by organic precursors and that can be integrated into smart packaging, ornaments or clothing. In …
The performance of printed electronics applications depends fundamentally on printing good diodes that are considered the "quintessential" element of electronics. This project proposes to study a hybrid Schottky diode prepared by the spray deposition technique, with structure PEDOT:PSS/ZnO/AZO, in which gold nanoparticles (AuNPs) are added to the ZnO film. The AC and DC characterization w…
Most electronic devices made of organic materials are fabricated using a thin film as a signal transducer element, whose structuring (supramolecular arrangement), in addition to the physical and chemical characteristics of the material itself, is a fundamental factor in the optical and electrical properties of the film and respective device. In this project thin films (nanometers thick) o…
The flexible and printed organic electronics stands out in the technological development scenario. Its main applications are on large-area devices, with low processability temperature and low production cost. Furthermore, it is desirable to fabricate these devices using materials and methods compatible with printing techniques. Among the most utilized electronic components, the transistor…
(Only some records are available in English at this moment)
The search for sustainable alternatives to silicon-based electronics and conventional processes has fostered the investigation of new possibilities for electronic devices, such as transistors based on eco-friendly and abundant nano-scale materials on flexible and conformable substrates. However, devices designed for disposable applications should be easy to recycle and have the lowest pos…
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 …
Recently, the electronics industry has transformed the world in such a way that its products have become essential to everyday life. On the other hand, the growing use of electronic devices and gadgets has increased the generation of electronic waste (e-waste). Thus, there is an urgent need to develop biodegradable electronic devices and components using techniques that also cause less da…
An interesting way to produce an UV sensor is integrating a diode and a transistor. However, if you want to fabricate this circuit without encapsulation, it's necessary use a blocking filter to prevent devices parameters change. Gallium oxide (Ga2O3) is an interesting material due its large bandgap of ~4.9 eV that makes it an ideal candidate for solar-blind devices and deep UV sensor. The…
Investments on the printed electronic area has been increased every year, but the development of all-printed logical circuits depends on the ability building thin film transistors (TFTs) successfully. In this context to achieve marketable printed electronic technologies, must be found ways to increase the long-term stability and lifetime of TFTs. Currently this is a critical issue. Thereb…
| 1 / 1 | Ongoing research grants |
| 7 / 4 | Completed research grants |
| 2 / 2 | Ongoing scholarships in Brazil |
| 27 / 20 | Completed scholarships in Brazil |
| 2 / 2 | Ongoing scholarships abroad |
| 3 / 3 | Completed scholarships abroad |
| 42 / 32 | All research grants and scholarships |
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CV Lattes
ORCID