Publications Thesis dissertations (18) III–V-aurinkokennojen rappeutuminen avaruuden säteilyn vaikutuksesta Author(s): Susanna Rouru Published in: 2021 Publisher: Tampere University Moniliitoskennorakenteen optimointi Simulink-mallinnuksella Author(s): Leo Peltomaa Published in: 2020 Publisher: Tampere University Moniliitosaurinkokennojen arkkitehtuurien kehitys 2020-luvulla ja rakenteiden fysikaaliset rajoitteet Author(s): Pokela, Simo Published in: 2022 Publisher: Tampere University Front contact optimization for concentrator III-V semiconductor solar cells Author(s): Elina Anttola Published in: 2021 Publisher: Tampere University Utilizing satellite-based local solar spectra for solar cell calibration Author(s): Arttu Hietalahti Published in: 2020 Publisher: Tampere University III–V-Puolijohdeaurinkokennojen Mallinnus Diodiyhtälöllä Author(s): Veikka Nikander Published in: 2020 Publisher: Tampere University Depth profiling of composition in MBE grown III-V/Ge solar cells Author(s): Severi Mäkelä Published in: 2020 Publisher: Tampere University Performance of silver contacts in III-V solar cells Author(s): Antti Fihlman Published in: 2022 Publisher: Tampere University Power optimization and modelling of connections in solar panel consisting of concentrated photovoltaics multi-junction solar cells Author(s): Eero Hyötylä Published in: 2018 Publisher: Tampere University of Technology Metallin merkitys kontaktiresistanssissa (Conctact Resistance Study: The influense of metal interfaces) Author(s): Ninja Kajas Published in: 2018 Publisher: Tampere University of Technology Nonselective wet etching of III–V semiconductor materials with HIO3:HCl:H2O solutions Author(s): Tomi Koikkalainen Published in: 2018 Publisher: Tampere University of Technology Heat management in high-efficiency photovoltaics Author(s): Lauri Hytönen Published in: 2018 Publisher: Tampere University of Technology Aurinkokennon metallikontaktien valmistus sputteroimalla (Sputtering of metals for solar cell contacts) Author(s): Teemu Hurmerinta Published in: 2018 Publisher: Tampere University of Technology HOPEAKONTAKTIEN VALMISTAMINEN RESISTIIVISESTI HÖYRYSTÄMÄLLÄ III-V PUOLIJOHDEAURINKOKENNOIHIN (Thermal Evaporation of Silver, Bachelor of Science) Author(s): Elina Anttola Published in: 2019 Publisher: Tampere Univerisity Uudentyyppinen metallikontakti III–V-puolijohdeaurinkokennojen hyötysuhteen parantamiseksi (Novel front contact grid design for III–V-semiconductor solar cells − enhancing the conversion efficiency) - Master Thesis Author(s): Ninja Kajas Published in: 2019 Publisher: Tampere University Narrow Bandgap (0.7–0.9 eV) Dilute Nitride Materials for Advanced Multijunction Solar Cells Author(s): Riku Isoaho Published in: 2022 Publisher: Tampere University Advanced III-V Solar Cells with Back Reflectors (D.Sc. thesis) Author(s): Timo Aho Published in: 2020 Publisher: Tampere University Advanced Functional Antireflection Coatings for Broadband Multijunction Solar Cells Author(s): Jarno Reuna Published in: 2022 Publisher: Tampere University Peer reviewed articles (23) Thin-film InAs/GaAs quantum dot solar cell with planar and pyramidal back reflectors Author(s): Timo Aho, Farid Elsehrawy, Antti Tukiainen, Sanna Ranta, Marianna Raappana, Riku Isoaho, Arto Aho, Arttu Hietalahti, Federica Cappelluti, Mircea Guina Published in: Applied Optics, Issue 59/21, 2020, Page(s) 6304, ISSN 1559-128X Publisher: OSA Publishing DOI: 10.1364/ao.396590 Luminescent (Er,Ho)2O3 thin films by ALD to enhance the performance of silicon solar cells Author(s): Amr Ghazy, Muhammad Safdar, Mika Lastusaari, Arto Aho, Antti Tukiainen, Hele Savin, Mircea Guina, Maarit Karppinen Published in: Solar Energy Materials and Solar Cells, Issue 219, 2021, Page(s) 110787, ISSN 0927-0248 Publisher: Elsevier BV DOI: 10.1016/j.solmat.2020.110787 Optimization of reactive ion beam sputtered Ta2O5 for III–V compounds Author(s): Jarno Reuna, Marianna Vuorinen, Riku Isoaho, Arto Aho, Severi Mäkelä, Arttu Hietalahti, Elina Anttola, Antti Tukiainen, Mircea Guina Published in: Thin Solid Films, 2022, ISSN 0040-6090 Publisher: Elsevier Sequoia DOI: 10.1016/j.tsf.2022.139601 Hybrid quasi-3D optimization of grid architecture for single junction photovoltaic converters Author(s): Veikka Nikander, Jianguo Wei, Arto Aho, Ville Polojarvi, Antti Tukiainen, Mircea Guina Published in: Optical and Quantum Electronics, Issue 53/4, 2021, ISSN 0306-8919 Publisher: Kluwer Academic Publishers DOI: 10.1007/s11082-021-02850-x High performance low-bandgap (0.8 eV) single junction GaInNAsSb solar cells incorporating Au-based back surface reflectors Author(s): Riku Isoaho, Timo Aho, Arto Aho, Antti Tukiainen, Jarno Reuna, Marianna Raappana, Mircea Guina Published in: Solar Energy Materials and Solar Cells, 2021, ISSN 1879-3398 Publisher: Elsevier DOI: 10.1016/j.solmat.2021.111413 Nonselective etching of As and P based III‒V solar cell heterostructures with aqueous solutions of HIO3 and HCl Author(s): Marianna Raappana, Tomi Koikkalainen, Ville Polojärvi, Arto Aho, Timo Aho, Riku Isoaho, Antti Tukiainen, Mircea Guina Published in: Solar Energy Materials and Solar Cells, Issue 226, 2021, Page(s) 111097, ISSN 0927-0248 Publisher: Elsevier BV DOI: 10.1016/j.solmat.2021.111097 Epitaxial lift-off process for GaAs solar cells controlled by InGaAs internal sacrificial stressor layers and a PMMA surface stressor Author(s): Prabudeva Ramu, Arto Aho, Ville Polojärvi, Timo Aho, Antti Tukiainen, Teemu Hakkarainen, Jarno Reuna, Jari Lyytikäinen, Roosa Hytönen, Mircea Guina Published in: Solar Energy Materials and Solar Cells, 2022, ISSN 1879-3398 Publisher: Elsevier DOI: 10.1016/j.solmat.2022.111982 Use of nanostructured alumina thin films in multilayer anti-reflective coatings Author(s): Jarno Reuna, Arto Aho, Riku Isoaho, Marianna Raappana, Timo Aho, Elina Anttola, Arttu Hietalahti, Antti Tukiainen, Mircea Guina Published in: Nanotechnology, Issue 32/21, 2021, Page(s) 215602, ISSN 0957-4484 Publisher: Institute of Physics Publishing DOI: 10.1088/1361-6528/abe747 Impact of Bi incorporation on the evolution of microstructure during growth of low-temperature GaAs:Bi/Ga(As,Bi) layers Author(s): E. Luna, M. Wu, T. Aoki, M. R. McCartney, J. Puustinen, J. Hilska, M. Guina, D. J. Smith, A. Trampert Published in: Journal of Applied Physics, Issue 126/8, 2019, Page(s) 085305, ISSN 0021-8979 Publisher: American Institute of Physics DOI: 10.1063/1.5111532 Room-temperature electron spin polarization exceeding 90% in an opto-spintronic semiconductor nanostructure via remote spin filtering Author(s): Yuqing Huang, Ville Polojärvi, Satoshi Hiura, Pontus Höjer, Arto Aho, Riku Isoaho, Teemu Hakkarainen, Mircea Guina, Shino Sato, Junichi Takayama, Akihiro Murayama, Irina A. Buyanova, Weimin M. Chen Published in: Nature Photonics, Issue 15/6, 2021, Page(s) 475-482, ISSN 1749-4885 Publisher: Nature Pub. Group DOI: 10.1038/s41566-021-00786-y Ice resistance of hydrophobic fluoropolymerized nanostructuredalumina films for antireflective coatings Author(s): Jarno Reuna, Raul Kanter, Niklas Kandelin, Kaisa Kiuru, Heli Koivuluoto, Mircea Guina Published in: Nano Express, 2023, ISSN 2632-959X Publisher: IOPSCIENCE DOI: 10.1088/2632-959x/acad19 Wet etching of dilute nitride GaInNAs, GaInNAsSb, and GaNAsSb alloys lattice-matched to GaAs Author(s): Marianna Raappana, Ville Polojärvi, Arto Aho, Jaakko Mäkelä, Timo Aho, Antti Tukiainen, Pekka Laukkanen, Mircea Guina Published in: Corrosion Science, Issue 136, 2018, Page(s) 268-274, ISSN 0010-938X Publisher: Pergamon Press Ltd. DOI: 10.1016/j.corsci.2018.03.018 Dilute nitride triple junction solar cells for space applications: Progress towards highest AM0 efficiency Author(s): Arto Aho, Riku Isoaho, Antti Tukiainen, Gabriele Gori, Roberta Campesato, Mircea Guina Published in: Progress in Photovoltaics: Research and Applications, Issue 26/9, 2018, Page(s) 740-744, ISSN 1062-7995 Publisher: John Wiley & Sons Inc. DOI: 10.1002/pip.3011 Comparison of metal/polymer back reflectors with half-sphere, blazed, and pyramid gratings for light trapping in III-V solar cells Author(s): Timo Aho, Mircea Guina, Farid Elsehrawy, Federica Cappelluti, Marianna Raappana, Antti Tukiainen, A. B. M. Khairul Alam, Ismo Vartiainen, Markku Kuittinen, Tapio Niemi Published in: Optics Express, Issue 26/6, 2018, Page(s) A331, ISSN 1094-4087 Publisher: Optical Society of America DOI: 10.1364/oe.26.00a331 Lattice‐matched four‐junction tandem solar cell including two dilute nitride bottom junctions Author(s): Arto Aho, Riku Isoaho, Lauri Hytönen, Timo Aho, Marianna Raappana, Ville Polojärvi, Antti Tukiainen, Jarno Reuna, Severi Mäkelä, Mircea Guina Published in: Progress in Photovoltaics: Research and Applications, Issue 27/4, 2018, Page(s) 299-305, ISSN 1062-7995 Publisher: John Wiley & Sons Inc. DOI: 10.1002/pip.3094 Photovoltaic properties of low-bandgap (0.7–0.9 eV) lattice-matched GaInNAsSb solar junctions grown by molecular beam epitaxy on GaAs Author(s): Riku Isoaho, Arto Aho, Antti Tukiainen, Timo Aho, Marianna Raappana, Turkka Salminen, Jarno Reuna, Mircea Guina Published in: Solar Energy Materials and Solar Cells, Issue 195, 2019, Page(s) 198-203, ISSN 0927-0248 Publisher: Elsevier BV DOI: 10.1016/j.solmat.2019.02.030 Analysis of GaAsBi growth regimes in high resolution with respect to As/Ga ratio using stationary MBE growth Author(s): J. Puustinen, J. Hilska, M. Guina Published in: Journal of Crystal Growth, Issue 511, 2019, Page(s) 33-41, ISSN 0022-0248 Publisher: Elsevier BV DOI: 10.1016/j.jcrysgro.2019.01.010 Influence of ex-situ annealing on the properties of MgF2 thin films deposited by electron beam evaporation Author(s): Jarno Reuna, Ville Polojärvi, Pertti Pääkkönen, Kimmo Lahtonen, Marianna Raappana, Timo Aho, Riku Isoaho, Arto Aho, Mika Valden, Mircea Guina Published in: Optical Materials, Issue 96, 2019, Page(s) 109326, ISSN 0925-3467 Publisher: Elsevier BV DOI: 10.1016/j.optmat.2019.109326 Raman spectroscopy of GaSb1-xBix alloys with high Bi content Author(s): S. Souto, J. Hilska, Y. Galvão Gobato D. Souza, M. B. Andrade, E. Koivusalo, J. Puustinen, M. Guina Published in: Applied Physics Letters, 2020, ISSN 1077-3118 Publisher: AIP Publishing DOI: 10.1063/5.0008100 Wide spectral coverage (0.7–2.2 eV) lattice‐matched multijunction solar cells based on AlGaInP, AlGaAs and GaInNAsSb materials Author(s): Arto Aho, Riku Isoaho, Marianna Raappana, Timo Aho, Elina Anttola, Jari Lyytikäinen, Arttu Hietalahti, Ville Polojärvi, Antti Tukiainen, Jarno Reuna, Leo Peltomaa, Mircea Guina Published in: Progress in Photovoltaics: Research and Applications, Issue 29/7, 2021, Page(s) 869-875, ISSN 1062-7995 Publisher: John Wiley & Sons Inc. DOI: 10.1002/pip.3412 Bandgap energy model for GaInNAsSb/GaAs alloys with high N content and strain influence Author(s): Riku Isoaho, Arto Aho, Antti Tukiainen, Turkka Salminen, Mircea Guina Published in: Journal of Crystal Growth, 2022, ISSN 0022-0248 Publisher: Elsevier BV DOI: 10.1016/j.jcrysgro.2022.126574 Optimized molecular beam epitaxy process for lattice-matched narrow-bandgap (0.8 eV) GaInNAsSb solar junctions Author(s): Riku Isoaho; Antti Tukiainen; Juuso Puutio; Arttu Hietalahti; Jarno Reuna; Antti Fihlman; Elina Anttola; Miika Keränen; Arto Aho; Mircea Guina Published in: Solar Energy Materials and Solar Cels, Issue 2, 2022, ISSN 1879-3398 Publisher: Elsevier DOI: 10.1016/j.solmat.2022.111987 Optical Performance Assessment of Nanostructured Alumina Multilayer Antireflective Coatings Used in III–V Multijunction Solar Cells Author(s): Jarno Reuna, Arttu Hietalahti, Arto Aho, Riku Isoaho, Timo Aho, Marianna Vuorinen, Antti Tukiainen, Elina Anttola, Mircea Guina Published in: ACS Applied Energy Materials, 2022, ISSN 2574-0962 Publisher: ACS Publications DOI: 10.1021/acsaem.2c00133 Conference proceedings (22) Quasi-3D Optimization of Grid Architecture for Photovoltaic Converters Using Solcore Author(s): Veikka Nikander, Jianguo Wei, Arto Aho, Ville Polojarvi, Antti Tukiainen, Mircea Guina Published in: 2020 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD), 2020, Page(s) 51-52, ISBN 978-1-7281-6086-3 Publisher: IEEE DOI: 10.1109/nusod49422.2020.9217763 Advanced grid concept with external busbars applied on III-V multijunction solar cells Author(s): Marianna Raappana, Ninja Kajas, Arto Aho, Ville Polojarvi, Timo Aho, Riku Isoaho, Antti Tukiainen, Mircea Guina Published in: 2020 47th IEEE Photovoltaic Specialists Conference (PVSC), 2020, Page(s) 0951-0954, ISBN 978-1-7281-6115-0 Publisher: IEEE DOI: 10.1109/pvsc45281.2020.9300991 Structured Metal/Polymer Back Reflectors for III–V Solar Cells Author(s): Timo Aho, Tapio Niemi, Federica Cappelluti, Antti Tukiainen, Farid Elsehrawy, Mircea Guina Published in: Light, Energy and the Environment, 2017, Page(s) JW5A.23, ISBN 978-1-943580-36-1 Publisher: OSA DOI: 10.1364/pv.2017.jw5a.23 Passivation of GaInP and AlInP surfaces for III-V solar cells Author(s): Marianna Raappana, Ville Polojärvi, Timo Aho, Arto Aho, Riku Isoaho, Antti Tukiainen, Mircea Guina Published in: 2017 Publisher: European PV Solar Energy Conference and Exhibition Broadband Anti-reflective Coatings for Multi-junction Solar Cells Author(s): Jarno Reuna, Ville Polojärvi, Timo Aho, Arto Aho, Riku Isoaho, Antti Tukiainen, Mircea Guina Published in: 2017 Publisher: Optics and Photonics days 2017 Four Junction Dilute Nitride Solar Cells for Next Generation CPV-systems Author(s): Arto Aho, Riku Isoaho, Timo Aho, Marianna Raappana, Ville Polojärvi, Antti Tukiainen, Mircea Guina Published in: 2017 Publisher: cpv-13, 13. International Conference on Concentrating Photovoltaic Systems GaInNAsSb-based Four Junction Solar Cells on GaAs and Ge Substrates Author(s): Arto Aho, Riku Isoaho, Marianna Raappana, Ville Polojärvi, Lauri Hytönen, Timo Aho, Antti Tukiainen, Mircea Guina Published in: 2018 Publisher: cpv-14, 14. International Conference on Concentrating Photovoltaic Systems Multijunction solar cells: path to conversion efficiencies exceeding 50% Author(s): Marianna Raappana, Arto Aho, Ville Polojärvi, Timo Aho, Riku Isoaho, Lauri Hytönen, Antti Tukiainen, Mircea Guina Published in: 2018 Publisher: Optics and Photonics Days 2018 Metal/Polymer Back Reflectors with Diffraction Gratings for Light Trapping in III-V Solar Cells Author(s): Timo Aho, Mircea Guina, F. Elsehrawy, F. Cappelluti, Marianna Raappana, Antti Tukiainen, A B M Khairul Alam, I. Vartiainen, M. Kuittinen, and T. Niemi Published in: 2018 Publisher: WCPEC-7 conference Comparison of ‘shallow’ and ‘deep’ junction architectures for MBE-grown InAs/GaAs quantum dot solar cells Author(s): Antti Tukiainen, Jari Lyytikäinen, Timo Aho, Eero Halonen, Marianna Raappana, Federica Cappelluti, and Mircea Guina Published in: 2018 Publisher: WCPEC-7 conference High N-concentration GaInNAsSb materials for III–V solar cells with bandgaps below 0.8 eV Author(s): Riku Isoaho, Arto Aho, Severi Mäkelä, Lauri Hytönen, Mircea Guina Published in: 2018 Publisher: 20th International Conference on Molecular Beam Epitaxy (ICMBE 2018) Dilute Nitride Solar Cells - Technology Developments Towards 50% Efficiency Author(s): Mircea Guina, Antti Tukiainen, Arto Aho, Ville Polojärvi Published in: 2017 Publisher: 2017 MRS Spring Meeting & Exhibit Temperature dependent characteristics of GaInP/GaAs/GaInNAsSb solar cell under simulated AM0 spectra Author(s): Riku Isoaho, Arto Aho, Antti Tukiainen, Mircea Guina Published in: 2017 Publisher: 44th IEEE Photovoltaics Specialist Conference Design considerations on GaInNAs solar cells with back surface reflectors Author(s): Antti Tukiainen, Arto Aho, Timo Aho, Ville Polojärvi, Mircea Guina Published in: 2017 Publisher: 44th IEEE Photovoltaics Speacialist Conference High Efficiency Lattice Matched Four-Junction Solar Cells on GaAs Author(s): Arto Aho, Riku Isoaho, Marianna Raappana, Timo Aho, Ville Polojärvi, Antti Tukiainen, Mircea Guina Published in: The 20th European Workshop on Molecular Beam Epitaxy - EuroMBE 2019, Issue Feb 17th to 20th, 2019, 2019 Publisher: EuroMBE 2019 Novel III-V Heterostructures for High Efficiency Solar Cells Author(s): Ville Polojärvi, Arto Aho, Antti Tukiainen, Marianna Raappana, Timo Aho, Riku Isoaho, Mircea Guina Published in: Optics and Photonics days 2017 - Oulu, Finland, 2017 Publisher: Optics and Photonics days 2017, Oulu, Finland. High Efficiency Lattice-Matched 4J Space Solar Cells on GaAs Author(s): Arto Aho, Arttu Hietalahti, Mircea Guina, Marianna Raappana, Riku Isoaho, Timo Aho, Ville Polojarvi, Antti Tukiainen, Elina Anttola, Severi Makela, Jarno Reuna Published in: 2019 European Space Power Conference (ESPC), 2019, Page(s) 1-3, ISBN 978-1-7281-2126-0 Publisher: IEEE DOI: 10.1109/espc.2019.8932092 Performance of Solar Cell Grids based on Ag, Au, and Al for Cost-Effective Manufacturing Author(s): Marianna Raappana, Arto Aho, Timo Aho, Riku Isoaho, Elina Anttola, Ninja Kajas, Ville Polojarvi, Antti Tukiainen, Mircea Guina Published in: 2019 European Space Power Conference (ESPC), 2019, Page(s) 1-3, ISBN 978-1-7281-2126-0 Publisher: IEEE DOI: 10.1109/espc.2019.8932002 Enhancement of EQE for MBE grown InAs/GaAs Quantum Dot Solar Cell with Back Reflector Author(s): Timo Aho, Antti Tukiainen, Sanna Ranta, Farid Elsehrawy, Marianna Raappana, Riku Isoaho, Arto Aho, Federica Cappelluti, Mircea Guina Published in: 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC), 2019, Page(s) 2593-2596, ISBN 978-1-7281-0494-2 Publisher: IEEE DOI: 10.1109/pvsc40753.2019.8981170 Performance Study of Lattice-Matched Multijunction Solar Cells Incorporating GaInNAsSb Junctions with 0.7 - 1.4 eV Bandgap Author(s): Arto Aho, Mircea Guina, Riku Isoaho, Marianna Raappana, Timo Aho, Ville Polojarvi, Antti Tukiainen, Elina Anttola, Severi Makela, Jarno Reuna Published in: 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC), 2019, Page(s) 0041-0044, ISBN 978-1-7281-0494-2 Publisher: IEEE DOI: 10.1109/pvsc40753.2019.8980658 Narrow Bandgap Dilute Nitride Materials for 6-junction Space Solar Cells Author(s): Riku Isoaho, Arto Aho, Antti Tukiainen, Timo Aho, Marianna Raappana, Turkka Salminen, Jarno Reuna, Mircea Guina Published in: 2019 European Space Power Conference (ESPC), 2019, Page(s) 1-3, ISBN 978-1-7281-2126-0 Publisher: IEEE DOI: 10.1109/espc47532.2019.9049263 Back Reflector with Diffractive Gratings for Light-Trapping in Thin-Film III-V Solar Cells Author(s): Timo Aho, Antti Tukiainen, Farid Elsehrawy, Sanna Ranta, Marianna Raappana, Arto Aho, Riku Isoaho, Federica Cappelluti, Mircea Guina Published in: 2019 European Space Power Conference (ESPC), 2019, Page(s) 1-4, ISBN 978-1-7281-2126-0 Publisher: IEEE DOI: 10.1109/espc47532.2019.9049262 Book chapters (2) Quantum Dot-Based Thin-Film III–V Solar Cells Author(s): F. Cappelluti, A. Tukiainen, T. Aho, F. Elsehrawy, N. Gruginskie, M. van Eerden, G. Bissels, A. Tibaldi, G. J. Bauhuis, P. Mulder, A. Khalili, E. Vlieg, J. J. Schermer, M. Guina Published in: Quantum Dot Optoelectronic Devices, Issue 27, 2020, Page(s) 1-48, ISBN 978-3-030-35812-9 Publisher: Springer International Publishing DOI: 10.1007/978-3-030-35813-6_1 Chapter 5 - Molecular Beam Epitaxy of Dilute Nitride Optoelectronic Devices Author(s): Mircea Guina, Shu M. Wang, Arto Aho Published in: Molecular Beam Epitaxy (Second Edition), 2018, Page(s) 73-94 Publisher: Elsevier DOI: 10.1016/B978-0-12-812136-8.00005-0 Searching for OpenAIRE data... There was an error trying to search data from OpenAIRE No results available
