High molecular weight block copolymer lithography for nanofabrication of hard mask and photonic nanostructures S Rasappa, H Hulkkonen, L Schulte, S Ndoni, J Reuna, T Salminen, ... Journal of colloid and interface science 534, 420-429, 2019 | 32 | 2019 |
Lattice‐matched four‐junction tandem solar cell including two dilute nitride bottom junctions A Aho, R Isoaho, L Hytönen, T Aho, M Raappana, V Polojärvi, ... Progress in Photovoltaics: Research and Applications 27 (4), 299-305, 2019 | 29 | 2019 |
Photovoltaic properties of low-bandgap (0.7–0.9 eV) lattice-matched GaInNAsSb solar junctions grown by molecular beam epitaxy on GaAs R Isoaho, A Aho, A Tukiainen, T Aho, M Raappana, T Salminen, J Reuna, ... Solar Energy Materials and Solar Cells 195, 198-203, 2019 | 26 | 2019 |
Wide spectral coverage (0.7–2.2 eV) lattice‐matched multijunction solar cells based on AlGaInP, AlGaAs and GaInNAsSb materials A Aho, R Isoaho, M Raappana, T Aho, E Anttola, J Lyytikäinen, ... Progress in Photovoltaics: Research and Applications 29 (7), 869-875, 2021 | 23 | 2021 |
High performance low-bandgap (0.8 eV) single junction GaInNAsSb solar cells incorporating Au-based back surface reflectors R Isoaho, T Aho, A Aho, A Tukiainen, J Reuna, M Raappana, M Guina Solar Energy Materials and Solar Cells 234, 111413, 2022 | 10 | 2022 |
High-power 1.5 μm tapered distributed Bragg reflector laser diodes for eye-safe LIDAR AT Aho, J Viheriälä, M Koskinen, T Uusitalo, J Reuna, M Guina IEEE Photonics Technology Letters 32 (19), 1249-1252, 2020 | 10 | 2020 |
Influence of ex-situ annealing on the properties of MgF2 thin films deposited by electron beam evaporation J Reuna, V Polojärvi, P Pääkkönen, K Lahtonen, M Raappana, T Aho, ... Optical Materials 96, 109326, 2019 | 10 | 2019 |
Use of nanostructured alumina thin films in multilayer anti-reflective coatings J Reuna, A Aho, R Isoaho, M Raappana, T Aho, E Anttola, A Hietalahti, ... Nanotechnology 32 (21), 215602, 2021 | 9 | 2021 |
Optical performance assessment of nanostructured alumina multilayer antireflective coatings used in III–V multijunction solar cells J Reuna, A Hietalahti, A Aho, R Isoaho, T Aho, M Vuorinen, A Tukiainen, ... ACS Applied Energy Materials 5 (5), 5804-5810, 2022 | 8 | 2022 |
Epitaxial lift-off process for GaAs solar cells controlled by InGaAs internal sacrificial stressor layers and a PMMA surface stressor P Ramu, A Aho, V Polojärvi, T Aho, A Tukiainen, T Hakkarainen, J Reuna, ... Solar Energy Materials and Solar Cells 248, 111982, 2022 | 5 | 2022 |
Optimized molecular beam epitaxy process for lattice-matched narrow-bandgap (0.8 eV) GaInNAsSb solar junctions R Isoaho, A Tukiainen, J Puutio, A Hietalahti, J Reuna, A Fihlman, ... Solar Energy Materials and Solar Cells 248, 111987, 2022 | 3 | 2022 |
Performance Study of Lattice-Matched Multijunction Solar Cells Incorporating GaInNAsSb Junctions with 0.7-1.4 eV Bandgap A Aho, R Isoaho, M Raappana, T Aho, V Polojärvi, A Tukiainen, E Anttola, ... 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC), 0041-0044, 2019 | 3 | 2019 |
Anti-Reflective Coatings for Multi-Junction Solar Cells J Reuna | 3 | 2016 |
Ice resistance of hydrophobic fluoropolymerized nanostructured alumina films for antireflective coatings J Reuna, R Kanter, N Kandelin, K Kiuru, H Koivuluoto, M Guina Nano Express 3 (4), 044002, 2023 | 2 | 2023 |
High peak power laser diodes at 1.5 um with integrated wavelength locking element (Conference Presentation) A Aho, J Viheriälä, H Virtanen, T Uusitalo, M Koskinen, J Reuna, M Guina High-Power Diode Laser Technology XVIII 11262, 112620E, 2020 | 2 | 2020 |
Sub-Hz single-frequency VECSELs for optical clocks JP Penttinen, E Kantola, T Uusitalo, S Ranta, A Hietalahti, ... Quantum Sensing, Imaging, and Precision Metrology II, PC1291207, 2024 | 1 | 2024 |
Optimization of reactive ion beam sputtered Ta2O5 for III–V compounds J Reuna, M Vuorinen, R Isoaho, A Aho, S Mäkelä, A Hietalahti, E Anttola, ... Thin Solid Films 763, 139601, 2022 | 1 | 2022 |
Interference system for high pressure environment T Kumpulainen, A Singh, T März, L Dong, J Reuna, J Vihinen, D Li, ... Optics & Laser Technology 142, 107278, 2021 | 1 | 2021 |
Mixed phase Ti3+-rich TiO2 thin films by oxide defect engineered crystallization L Palmolahti, H Ali-Löytty, M Hannula, T Tinus, K Lehtola, A Tukiainen, ... | | 2024 |
High-Power Single-Frequency VECSEL Platform for Quantum Technology JP Penttinen, E Kantola, T Uusitalo, S Ranta, A Hietalahti, ... Quantum 2.0, QW3B. 2, 2023 | | 2023 |