Department of Electronics and Nanoengineering

Micro and Quantum Systems

The Micro and Quantum Systems (MQS) group is located in Micronova, the nanofabrication facility of Aalto University. Our research interests span from nanoscale transport phenomena to quantum technologies and nanotechnology-based green energy production.
Artistic illustration of photoelectrochemical water splitting reaction at atomic level
Artistic illustration of photoelectrochemical water splitting reaction at atomic level

 Our current research topics include

-    Photoelectrocatalysis
-    Plasmonic nanoparticles
-    Nanoscale thermal engineering and thermoelectrics
-    Semiconductor quantum optics
-    Quantum information and -computing

We aim to combine simulation studies with experimental work to find intriguing approaches for experiments and concurrently, to validate the computational effort. In addition to research work, we participate actively in teaching, especially in the frameworks of Quantum Technologies B.Sc. program and Electronics and Nanotechnology M.Sc. program.

We are always interested in collaborating with new people. If you are interested in working with us, whether in terms of a M. Sc. thesis, or a research visit or -collaboration, please contact Prof. Ilkka Tittonen (contact details below).

Group photo from development day in Pihlajasaari
Group photo from development day in Pihjlajasaari. From the Left: Oskari, Werner, Arttu, Oona, Lassi, Ulrika, Pyry, Ornella, Ilkka, Peetu, Camilla, Tomi, Ramesh, Aadesh.

Research frameworks:

We are part of the Flagship on Photonics and Research Innovation (PREIN) programme managed by the Academy of Finland, as well as the Centre for Quantum Engineering (CQE) in Aalto University.

Current research frameworks:

  • The Academy of Finland project CarbonSurf, within the C1 Value program, for the development of novel CO2 catalysts and catalytic structures
  • National project in Post-Quantum Cryptography (PQC) aiming to develop quantum-safe algorithms. More information:

Past research frameworks:

  • The Academy of Finland project eVapor, within the ICT 2023 program, for the self-standing harvest of energy from water evaporation into electrical power for the operation of microcontrollers and other low-power devices
  • The European Union project TransFlexTeg , within the H2020 program, for the development of large-area transparent thin films, their thermoelectric applications, and the investigation of thermal transport phenomena
  •  The Academy of Finland project OPTOBIO, within the New Energy Program, for the generation of solar fuels via photoelectrochemical water electrolysis by semiconductor and plasmonic materials

Latest publications

Multiphysics simulation explaining the behaviour of evaporation-driven nanoporous generators

L. Hällström, T. Koskinen, C. Tossi, T. Juntunen, I. Tittonen 2022 Energy Conversion and Management

Photoelectrochemical, photocatalytic and electrocatalytic behavior of titania films modified by nitrogen and platinum species

D. Ihnatiuk, V. Vorobets, M. Šihor, C. Tossi, G. Kolbasov, N. Smirnova, I. Tittonen, A. Eremenko, K. Kočí, O. Linnik 2022 Applied Nanoscience (Switzerland)

InSb Nanowire Direct Growth on Plastic for Monolithic Flexible Device Fabrication

Vladislav Khayrudinov, Tomi Koskinen, Kacper Grodecki, Krzysztof Murawski, Małgorzata Kopytko, Lide Yao, Hua Jiang, Ilkka Juhani Tittonen, Harri Lipsanen, Tuomas Haggren 2022 ACS Applied Electronic Materials

Effect of spiral-like islands on structural quality, optical and electrical performance of InGaN/GaN heterostructures grown by metal organic chemical vapour deposition

K. Prabakaran, R. Ramesh, P. Arivazhagan, M. Jayasakthi, S. Sanjay, S. Surender, I. Davis Jacob, M. Balaji, K. Baskar 2022 MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING

Single-step chemical vapour deposition of anti-pyramid MoS2/WS2vertical heterostructures

Xueyin Bai, Shisheng Li, Susobhan Das, Luojun Du, Yunyun Dai, Lide Yao, Ramesh Raju, Mingde Du, Harri Lipsanen, Zhipei Sun 2021 Nanoscale

Quantum information probes of charge fractionalization in large-N gauge theories

Brandon S. DiNunno, Niko Jokela, Juan F. Pedraza, Arttu Pönni 2021 Journal of High Energy Physics

Optical amplification by surface-plasmon-resonant Au grating substrates: Monolayer MoS2 with 170-fold second harmonic generation and 3-fold (off-resonance) Raman scattering

Joonas T. Holmi, Ramesh Raju, Jonas Ylönen, Nagarajan Subramaniyam, Harri Lipsanen 2021 Superlattices and Microstructures

Computational Study Revealing the Influence of Surface Phenomena in p-GaAs Water-Splitting Cells

Lassi Hällström, Camilla Tossi, Ilkka Tittonen 2021 Journal of Physical Chemistry C

Towards precision holography

Niko Jokela, Arttu Pönni 2021 Physical Review D

Thermoelectric Characteristics of InAs Nanowire Networks Directly Grown on Flexible Plastic Substrates

Tomi Koskinen, Vladislav Khayrudinov, Fahimeh Emadi, Hua Jiang, Tuomas Haggren, Harri Lipsanen, Ilkka Tittonen 2021 ACS Applied Energy Materials
More information on our research in the Research database.
Research database


In addition to the extensive Micronova cleanroom facilities, important equipment on which MQS members have considerable expertise are listed below.

Professor Ilkka Tittonen
Email: ilkka.tittonen at

Postal address:
Department of Electronics and Nanoengineering
Aalto University School of Electrical Engineering
P.O. Box 13500, 00076 Aalto, Finland

Visiting address:
Micronova, 4th floor, room 4127
Tietotie 3, 02150 Espoo

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