Webinar: Computer Simulation Aspects of Nanoparticle and Nanodevice Design
Event Details:
- Date: Tuesday, 26 January 2021
- Time: Starts: 16:00
- Venue: Live streaming of the discussion will be available on Zoom (Password: VsSCz1)
- Speaker: Panagiotis Grammatikopoulos, Assistant Professor in Particle Technology Laboratory, Institute of Process Engineering, Department of Mechanical and Process Engineering, ETH Zürich (Switzerland), and Staff Scientist, Okinawa Institute of Science & Technology (Japan)
About the SimEA project Seminar Series
The SimEA project Seminar Series aims at promoting and disseminating scientific knowledge, focusing on Computational Science and Engineering, by featuring prominent researchers from around the world presenting their views and addressing key questions.
This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 810660.
Abstract
Cluster beam deposition (CBD) is a term that collectively describes various physical methods of nanoparticle synthesis by nucleation and growth from a supersaturated atomic vapour. It provides a solvent- and effluent-free method to design monodisperse multifunctional nanoparticles with tailored characteristics that can be subsequently deposited on a desired substrate or device in the soft-landing regime under ultra-high vacuum. In this talk, I will explain the main mechanisms that control the basic properties of individual nanoparticles such as size, shape, or chemical ordering, based on various setups of CBD sources. Moving to a coarser scale, I will bring up examples where larger structures can be designed using nanoparticles as their functional building blocks, such as novel sensors and energy storage devices. To date, CBD faces two main limitations that need to be overcome for real-world applications: (i) limited yield, and (ii) precise structural control. The main thesis of this talk is that both challenges can be tackled by in-depth theoretical understanding of both the thermodynamics and kinetics of nucleation & growth. To this end, atomistic computer modelling can be an invaluable tool, complementing experimental fabrication and guiding future source design.
About the Speaker
Panagiotis Grammatikopoulos is a computational materials scientist and nanotechnologist with extensive experience as a simulation expert in an experimental nanotechnology group and involvement in industrial research. His research interests lie on fundamental processes regarding nanoparticles, but extend to device fabrication and applications. Panagiotis was born and raised in Thessaloniki, Greece. He graduated from the Physics Department of the Aristotle University in 2000 and the Postgraduate Course “Physics of Materials” in 2002. He did his MSc thesis at the University of Liverpool, UK, where he returned in 2005 to do his PhD. He has worked as a Research Associate for NCSR Demokritos in Athens and the University of Greenwich, UK. Since 2011 he is also collaborating with the University of Helsinki as a Visiting Researcher. Since November 2012 Panagiotis has worked as a Postdoctoral Scholar for the “Nanoparticles by Design” unit at OIST Graduate University, Japan, where he became Staff Scientist and took over as Unit Leader in June 2016. Since 2020 he also holds the position of Visiting Assistant Professor at the Particle Technology Laboratory at ETH Zürich.
Download the Spring 2021 Online EuroCC & SimEA Seminar Series Programme here.
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Additional Info
- Date: Tuesday, 26 January 2021
- Time: Starts: 16:00
- Speaker: Panagiotis Grammatikopoulos, Assist. Prof. in Particle Technology Laboratory, Institute of Process Engineering, Department of Mechanical and Process Engineering, ETH Zürich (Switzerland), and Staff Scientist, Okinawa Institute of Science & Technology (Japan)
