Defence of doctoral thesis in the field of Micro- and nanosciences, M.Sc.(Tech.) Kirill Isakov

The title of the thesis is Grass-Like Aluminum Oxide: Fabrication and Applications

M.Sc.(Tech.) Kirill Isakov will defend the thesis "Grass-Like Aluminum Oxide: Fabrication and Applications" on 7 May 2021 at 12 in Aalto University School of Electrical Engineering, Department of Electronics and Nanoengineering.

Opponent: Dr. David Poxson, Linköping University, Sweden
Supervisor: Prof. Harri Lipsanen, Aalto University School of Electrical Engineering, Department of Electronics and Nanoengineering

The public defense will be organized via remote technology. Follow defence:
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Thesis available for public display at:

Doctoral theses in the School of Electrical Engineering:

Press release:

This thesis presents a novel nanostructured material ”grass-like alumina” (GLA) — a porous thin film coating with gradient refractive index and high surface area. This work describes fabrication methodology in detail and introduces several applications of GLA.

Due to gradient refractive index it acts as an excellent anti-reflective coating. Reduction in reflection can be achieved across wide spectral range extending beyond visible light and even for light coming at close to glancing incident angles. GLA can also be made superhydrophobic, which adds self-cleaning properties to the coating.

GLA can also be utilised to make a high surface area electrode. Such electrode is shown to enhance energy storage capabilities of a super capacitor and has a potential to be used in batteries and other devices.

The applications developed in this thesis are on a competitive level with the state of arts in the corresponding fields and presented research has led to several patent applications and commercialisation activities with Business Finland.

Contact information of doctoral candidate:

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