Defence of doctoral thesis in the field of Micro- and nanosciences, M.Sc. Iurii Kim

M.Sc. Iurii Kim will defend the thesis "Approaches for optimizing III-N based devices" on 15 February 2022 at 12 in Aalto University School of Electrical Engineering, Department of Electronics and Nanoengineering.

Opponent: Dr. Yvon Cordier, Centre de Recherche sur l’Hétéroepitaxie et ses Applications (CRHEA, UPR-10) of CNRS, France
Custos: Prof. Markku Sopanen, Aalto University School of Electrical Engineering, Department of Electronics and Nanoengineering

The public defense will be organized via remote technology. Follow defence: https://aalto.zoom.us/j/65727344720
Zoom Quick Guide: https://www.aalto.fi/en/services/zoom-quick-guide

Thesis available for public display at: https://aaltodoc.aalto.fi/doc_public/eonly/riiputus/
Doctoral theses in the School of Electrical Engineering: https://aaltodoc.aalto.fi/handle/123456789/53

Press release:

Three-nitride (III-N) materials have been widely introduced into our everyday lives. They are used in modern lighting sources like light emitting diodes and in high-mobility electron transistors. Developing the fabrication methods and device performance can cut the energy loss in modern electronics. However, devices based on III-N suffer from numerous problems at all stages of their production.

In this dissertation, several approaches for fabrication and design optimization were developed to improve III-N based devices. The first part focuses on solving issues in the choice of substrate for III-N materials. The second part focuses on improvements in device design for light emitting diodes. And finally, the third part consists of studies of metallization and electrical characterization of III-N based devices. These results show that the developed materials and methods can be used for III-N based device fabrication and improve their performance.

Contact information of doctoral candidate: