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Online Summer School on Multiscale Modelling & Open Innovation Platforms


We are happy to welcome you to the "Summer School on Multiscale Modelling and Open Innovation Platforms", organized by the Institute of Materials Science and Computing of the University Research Center of Ioannina and hosted by MUSICODE project.

About the Summer School

In this summer school, academic and industrial experts will introduce students to multiscale modelling.

By the end of the course, students will have a good grasp of the fundamental physics and phenomena in each scale as well as a first understanding of the numerical methods involved in the simulations.

Many examples and case studies, both in basic and applied (industrial) research, will also be presented.

Lectures include:

  • Electronic Modelling

  • Atomistic Modelling

  • Coarse grain Modelling

  • Mesoscale Modelling

  • Continuum Modelling

  • Device Modelling

Also included are lectures on newly established Open Innovation Platforms. These include simulation frameworks capable of handling and executing a series of multiscale simulations, where the output of one scale becomes the input for the next. Several European projects working on such Open Simulation Platforms will be presented, by the researchers coordinating them, to give students a glimpse of all the exciting developments in Europe on materials modelling. Lectures include:

  • Multiscale Simulation Frameworks

  • EU projects on Open Innovation Platforms

The summer school is held from 18 to 23 of July 2022 in the form of a webinar (zoom), with exam/test and certificate of participation and successful examination.

Fluxim’s Dr. Sandra Jenatasch and Dr. Urs Aeberhard have been invited to present a 4 hour class entitled:

Device level Modelling of OPVs and OLEDs

This first part starts with the introduction of the theoretical formalism that is used to describe the physical processes central to the operation of opto-electronic devices based on thin organic or metal halide perovskite films. Special consideration is given to the role of disorder and excitonic behavior for charge generation/recombination, transport, and extraction/injection in organic opto-electronics, to the mobile ionic species in perovskites, and to the coherent thin film optics required to capture cavity effects in absorption and emission properties. Also, the assumptions made in the transition from an atomistic to a continuum formulation of the material are discussed. This leads to the formulation of a comprehensive modelling framework based on the coupling of continuity equations with drift-diffusion currents for free charge carriers and mobile ions to Poisson’s equation, the exciton diffusion equation (for organics), and the optical models for absorption and emission. The specific application of the framework is elaborated on for prototypical cases of steady-state, transient and frequency domain simulations of single junction and tandem devices. Finally, an outlook is given on how to use the insight from device level modelling for the simulation-based assessment of opto-electronic performance at larger scale, i.e., of PV modules and OLED panels.

In the second part of the lecture focusses on different application examples. We will start with an excursion to opto-electrical device measurement techniques for OLEDs and solar cells and present how those can be used to qualitatively understand device limitations. While a combination of steady-state, transient and impedance techniques are useful to pinpoint differences between sample A and B, their full potential is only exploited when combined with device simulations. We will present how this combination can be used to determine reliably material and device parameters, understand microscopic degradation mechanisms, and even optimize active layer compositions. Lastly, examples of large area simulations are presented that allow us to quantify upscaling losses and detect defects in large area solar cells and modules.

About the instructors

Dr. Sandra Jenatsch, Fluxim
Dr. Sandra Jenasch is the R&D Manager in Fluxim regarding Organic Electronics. Currently, she contributes to a variety of research projects of Fluxim and is also coaching Ph.D and M.Sc. students in collaboration with several European universities. Some of her responsibilities include the training of business partners and customers using the scientific tools of Fluxim.

Dr. Urs Aeberhard, Fluxim
Dr. Urs Aeberhard is currently a senior R&D scientist at Fluxim AG based in Winterthur, Switzerland. A condensed matter theorist by training, he has a strong background in theory and simulation of opto-electronic devices, most importantly solar cells, on both, meso- and macroscopic levels. In addition to his activities in model development and applied R&D at Fluxim, he teaches a course on the simulation of photovoltaic devices at ETH Zurich.

You can view the full list of courses and instructors here

Registration

To register for the summer school, please download and complete the registration form and return to the school email musicode@uoi.gr

Registration fees

  • Postdoc/researcher 50 €

  • MSc or PhD student 50 €

  • Undergraduate 50 €