About me
Senior Scientist of research infrastructures and Postdoc in Experimental Surface Science at the Faculty of Engineering and Natural Sciences, specialized in Ultrahigh Vacuum Systems, Electron Spectroscopy, Spectromicroscopy, Atomic Layer Deposition, and Surface Studies utilizing Synchrotron Radiation.
Responsibilities
Working in university research projects
- Faculty of Engineering and Natural Sciences
- Faculty of Information Technology and Communication Sciences
Measurement, analysis, and R&D services for companies, universities, and organizations
- Surface analysis and chemical composition mapping
- X-ray Photoelectron Spectroscopy
- Spectromicroscopy
- Atomic Layer Deposition
Development, maintenance, and user training of Research Infrastructures at Photonics Laboratory, that are included in FIRI (Academy of Finland's National Finnish Research Infrastructures) and FinnLight (Finnish National Infrastructure for Light-Based Technologies)
Material Characterization of Physics
- Modular Ultrahigh Vacuum Systems for in-situ sample preparation and surface analysis
- Scienta Omicron NanoESCA Spectromicroscope for imaging PEEM, XPS, UPS
- Scienta Omicron Argus Electron Spectrometer for imaging and selected area XPS
- VG Scientific ESCA3000 Electron Spectrometer for conventional XPS
- RHK UHV 300 Variable Temperature Scanning Tunneling Microscope
- Attension Theta Optical Tensiometer for contact angle measurement
- Picosun Sunale R200 Advanced Atomic Layer Deposition Reactor
- Focus EFM-3T Evaporator for physical vapour deposition
- Focus EFM H Atomic Hydrogen Source for cleaning, reduction, etching, and passivation
- Henniker HPT-100 Plasma Surface Treater for surface activation, cleaning, oxidation, and modification
- Carbolite Gero Tube Furnace for annealing in air and nitrogen
- Sample preparation and surface modification methods in UHV/HV/plasma/liquid: Radiative and Electron Beam Annealing, Evaporation, Electrospraying, Oxidation, Reduction, Gas exposures
- Scienta Omicron ISE 5 Cold Cathode Ion Sputter Source for Ar+ ion sputtering, N2 activated ion bombardment, surface cleaning, bulk cleaning when combined with UHV annealing induced segregation of impurities
- Creekside Technologies Rastering Ion Bombardment Gun for XPS depth profiling
- Generation of Ultra High Vacuum for special purposes using Turbomolecular, Ion, and Titanium Sublimation Pumps
Photonics Measurement and Testing
- Asahi Spectra MAX-350 UV-VIS Xenon Light Source and CMS-100 Monochromator
- Asahi Spectra HAL-C100 Solar Simulator
- Autolab PGSTAT12 and PGSTAT204 Electrochemical Instruments
- Electrochemical Cells
- Thermo Scientific Trace 1310 Gas Chromatograph
Research unit
Research fields
Physics and Surface Science
- Surfaces and Interfaces
- Thin Films
- Instrumentation
- Analysis Techniques
- Synchrotron Radiation
- Material Characterization
- Chemical Composition Mapping
- Surface States
- Oxidation and Reduction
- Diffusion
- Reconstruction
- Crystallization
- Nanostructures
- Surface Modification and Functionalization
Photonics
- Photonic Materials
- Artificial Photosynthesis
- Photoactive Nanostructured Materials
Materials Science and Technology
- Functional Materials
- Semiconductors
- Metals
- Alloys
- Coatings
Nanoscience and Nanotechnology
- Surface Structures
- Nanoparticles
Energy Engineering
- Fuel Cells
- Solar Energy
- Renewable Energy
Chemical Engineering
- Catalysis
Latest publications
Halide Engineering in Mixed Halide Perovskite-Inspired Cu2AgBiI6 for Solar Cells with Enhanced Performance
Vipinraj Sugathan, Liu, M., Pecoraro, A., Das, T. K., Ruoko, T. P., Grandhi, G. K., Manna, D., Ali-Löytty, H., Lahtonen, K., Muñoz-García, A. B., Pavone, M. & Vivo, P., 2024, In: ACS Applied Materials and Interfaces. 16, 15, p. 19026-19038Research output: Contribution to journal › Article › Scientific › peer-review
Lattice Engineering via Transition Metal Ions for Boosting Photoluminescence Quantum Yields of Lead-Free Layered Double Perovskite Nanocrystals
Liu, M., Matta, S. K., Said, T. A., Liu, J., Matuhina, A., Al-Anesi, B., Ali-Löytty, H., Lahtonen, K., Russo, S. P. & Vivo, P., 29 May 2024, (E-pub ahead of print) In: Small.Research output: Contribution to journal › Article › Scientific › peer-review
Antimony-Bismuth Alloying: The Key to a Major Boost in the Efficiency of Lead-Free Perovskite-Inspired Photovoltaics
Al-Anesi, B., Grandhi, G. K., Pecoraro, A., Sugathan, V., Viswanath, N. S. M., Ali-Löytty, H., Liu, M., Ruoko, T.-P., Lahtonen, K., Manna, D., Toikkonen, S., Muñoz-García, A. B., Pavone, M. & Vivo, P., 15 Nov 2023, In: Small. 19, 46, 2303575.Research output: Contribution to journal › Article › Scientific › peer-review
Corrigendum to “Pinhole-resistant nanocrystalline rutile TiO2 photoelectrode coatings” [Acta Materialia 239 (2022) 118257] (Acta Materialia (2022) 239, (S1359645422006371), (10.1016/j.actamat.2022.118257))
Palmolahti, L., Ali-Löytty, H., Hannula, M., Saari, J., Wang, W., Tukiainen, A., Lahtonen, K. & Valden, M., 1 May 2023, In: Acta Materialia. 249, 118818.Research output: Contribution to journal › Comment/debate › Scientific
Effect of graphene oxide fibre surface modification on low-velocity impact and fatigue performance of flax fibre reinforced composites
Javanshour, F., Prapavesis, A., Lahtonen, K., Pournoori, N., Pärnänen, T., Kanerva, M., Van Vuure, A. W. & Sarlin, E., Jul 2023, In: Composites Part C: Open Access. 11, 100360.Research output: Contribution to journal › Article › Scientific › peer-review
Less Is More: Simplified Fluorene-Based Dopant-Free Hole Transport Materials Promote the Long-Term Ambient Stability of Perovskite Solar Cells
Mäkinen, P., Fasulo, F., Liu, M., Grandhi, G. K., Conelli, D., Al-Anesi, B., Ali-Löytty, H., Lahtonen, K., Toikkonen, S., Suranna, G. P., Muñoz-García, A. B., Pavone, M., Grisorio, R. & Vivo, P., 2023, In: Chemistry of Materials. 35, 7, p. 2975–2987Research output: Contribution to journal › Article › Scientific › peer-review
Surface and optical properties of phase-pure silver iodobismuthate nanocrystals
Matuhina, A., Grandhi, G. K., Bergonzoni, A., Pedesseau, L., Grisorio, R., Annurakshita, S., Ali-Löytty, H., Varghese, R., Lahtonen, K., Volonakis, G., Pecunia, V., Bautista, G., Even, J. & Vivo, P., 22 Aug 2023, In: Nanoscale. 15, 36, p. 14764-14773 10 p.Research output: Contribution to journal › Article › Scientific › peer-review
Triple A-Site Cation Mixing in 2D Perovskite-Inspired Antimony Halide Absorbers for Efficient Indoor Photovoltaics
Lamminen, N., Grandhi, M., Fasulo, F., Hiltunen, A., Pasanen, H., Liu, M., Al-Anesi, B., Efimov, A., Ali-Löytty, H., Lahtonen, K., Mäkinen, P., Matuhina, A., Munoz-Garcia, A. B., Pavone, M. & Vivo, P., 27 Jan 2023, In: Advanced Energy Materials. 13, 4, 2203175.Research output: Contribution to journal › Article › Scientific › peer-review
Water-resistant perovskite-inspired copper/silver pnictohalide nanocrystals for photoelectrochemical water splitting
Liu, M., Grandhi, G. K., Al-Anesi, B., Ali-Löytty, H., Lahtonen, K., Grisorio, R. & Vivo, P., 2023, In: Electrochimica Acta. 462, 142734.Research output: Contribution to journal › Article › Scientific › peer-review
Corrosion and Protection of Silicon Nitride Insulators in Microelectrode Array Applications
Karttu, A., Lahtonen, K., Heikkilä, J., Väliaho, J., Narkilahti, S., Lekkala, J. & Kallio, P., 1 Jul 2022, In: IEEE Sensors Journal. 22, 13, p. 12504-12514 11 p.Research output: Contribution to journal › Article › Scientific › peer-review