The GreEnergy consortium is glad to welcome Dr. Eleonora Pavoni in the UNIVPM team (Ancona, Italy)!
Eleonora is a Ph.D. candidate currently working in the groups of Prof. Luca Pierantoni and Prof. Emiliano Laudadio, respectively from the Department of Information Engineering and the Department of Materials, Environmental Sciences and Urban Planning at UNIVPM.
Interestingly, Eleonora already got a first Ph.D. in Chemistry and worked as a research fellow for a few years in the field of spectroscopy (Photophysics, IR, and Raman) and microscopy (AFM, STM).
Her role in the GreEnergy project is mainly focused on the modelling of nanomaterials at the atomistic scale, with a particular interest in the simulation of graphene-based geometric diodes developed in the project.
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After almost two years into the project, GreEnergy organised its fifth Consortium Meeting on 06-07 December 2022.
Despite the online format, it was a productive meeting, allowing for efficient discussions about the results recently achieved in the labs, the next steps incl. technical challenges, upcoming public events, exploitation routes etc. Learn more about our recent outcomes by clicking here.
During the meeting, we also had the chance to benefit from the valuable inputs from our external advisor, Prof. Manfred Helm (Director of the Institute of Ion Beam Physics and Materials Research at Helmholtz-Zentrum Dresden-Rossendorf).
Looking forward to the next in-person Consortium Meeting in Gothenburg in Spring 2023, which will be hosted by the project coordinator - Chalmers University of Technology!
The UNIVPM team has recently published a scientific publication in the IEEE Access journal about their work on geometric diodes for high-frequency electromagnetic harvesting in GreEnergy.
In this contribution, geometric diodes based on graphene patterned with spatial asymmetry have been studied to verify their potential for electromagnetic (e. m.) harvesting. The UNIVPM team reports a detailed analysis of coherent charge transport and provides some figures of merit with respect to e. m. rectification, such as the asymmetry of the current-voltage characteristics. The most important achievement of this work is given by the accurate analysis of the main key physical/geometric parameters that affect the nonlinear response of the diodes, for different configurations and geometries. Thanks to the adopted simulation approach, it was possible to analyse asymmetric discontinuities and simulate large structures (more than 100K atoms). In this way, simulation at the atomistic level can be brought up to the device level to provide guidelines for design and fabrication, in view of practical applications related to clean-energy harvesting/rectification up to infrared and solar light frequencies.
Full article is available for download by clicking here.
The GreEnergy colleagues from AMO, Zhenxing Wang, Daniel Neumaier and Max Lemme have recently published a book chapter entitled “Carbon-Based Field-Effect Transistors”, which is included in the "Springer Handbook of Semiconductor Devices”.
The chapter contains a detailed overview on graphene and carbon nanotube (CNT) based transistors and integrated circuits, suitable for getting an introduction into the field.
The book chapter (DOI: 10.1007/978-3-030-79827-7_25) is accessible (under restriction depending on your institution) using this link.