Advanced III-V Materials and Processes Enabling Ultrahigh-efficiency ( 50%) Photovoltaics

III–V-aurinkokennojen rappeutuminen avaruuden säteilyn vaikutuksesta

Autores: Susanna Rouru
Publicado en: 2021
Editor: Tampere University

Moniliitoskennorakenteen optimointi Simulink-mallinnuksella

Autores: Leo Peltomaa
Publicado en: 2020
Editor: Tampere University

Moniliitosaurinkokennojen arkkitehtuurien kehitys 2020-luvulla ja rakenteiden fysikaaliset rajoitteet

Autores: Pokela, Simo
Publicado en: 2022
Editor: Tampere University

Front contact optimization for concentrator III-V semiconductor solar cells

Autores: Elina Anttola
Publicado en: 2021
Editor: Tampere University

Utilizing satellite-based local solar spectra for solar cell calibration

Autores: Arttu Hietalahti
Publicado en: 2020
Editor: Tampere University

III–V-Puolijohdeaurinkokennojen Mallinnus Diodiyhtälöllä

Autores: Veikka Nikander
Publicado en: 2020
Editor: Tampere University

Depth profiling of composition in MBE grown III-V/Ge solar cells

Autores: Severi Mäkelä
Publicado en: 2020
Editor: Tampere University

Performance of silver contacts in III-V solar cells

Autores: Antti Fihlman
Publicado en: 2022
Editor: Tampere University

Power optimization and modelling of connections in solar panel consisting of concentrated photovoltaics multi-junction solar cells

Autores: Eero Hyötylä
Publicado en: 2018
Editor: Tampere University of Technology

Metallin merkitys kontaktiresistanssissa (Conctact Resistance Study: The influense of metal interfaces)

Autores: Ninja Kajas
Publicado en: 2018
Editor: Tampere University of Technology

Nonselective wet etching of III–V semiconductor materials with HIO3:HCl:H2O solutions

Autores: Tomi Koikkalainen
Publicado en: 2018
Editor: Tampere University of Technology

Heat management in high-efficiency photovoltaics

Autores: Lauri Hytönen
Publicado en: 2018
Editor: Tampere University of Technology

Aurinkokennon metallikontaktien valmistus sputteroimalla (Sputtering of metals for solar cell contacts)

Autores: Teemu Hurmerinta
Publicado en: 2018
Editor: Tampere University of Technology

HOPEAKONTAKTIEN VALMISTAMINEN RESISTIIVISESTI HÖYRYSTÄMÄLLÄ III-V PUOLIJOHDEAURINKOKENNOIHIN (Thermal Evaporation of Silver, Bachelor of Science)

Autores: Elina Anttola
Publicado en: 2019
Editor: 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

Autores: Ninja Kajas
Publicado en: 2019
Editor: Tampere University

Narrow Bandgap (0.7–0.9 eV) Dilute Nitride Materials for Advanced Multijunction Solar Cells

Autores: Riku Isoaho
Publicado en: 2022
Editor: Tampere University

Advanced III-V Solar Cells with Back Reflectors (D.Sc. thesis)

Autores: Timo Aho
Publicado en: 2020
Editor: Tampere University

Advanced Functional Antireflection Coatings for Broadband Multijunction Solar Cells

Autores: Jarno Reuna
Publicado en: 2022
Editor: Tampere University

Thin-film InAs/GaAs quantum dot solar cell with planar and pyramidal back reflectors

Autores: Timo Aho, Farid Elsehrawy, Antti Tukiainen, Sanna Ranta, Marianna Raappana, Riku Isoaho, Arto Aho, Arttu Hietalahti, Federica Cappelluti, Mircea Guina
Publicado en: Applied Optics, Edición 59/21, 2020, Página(s) 6304, ISSN 1559-128X
Editor: OSA Publishing
DOI: 10.1364/ao.396590

Luminescent (Er,Ho)2O3 thin films by ALD to enhance the performance of silicon solar cells

Autores: Amr Ghazy, Muhammad Safdar, Mika Lastusaari, Arto Aho, Antti Tukiainen, Hele Savin, Mircea Guina, Maarit Karppinen
Publicado en: Solar Energy Materials and Solar Cells, Edición 219, 2021, Página(s) 110787, ISSN 0927-0248
Editor: Elsevier BV
DOI: 10.1016/j.solmat.2020.110787

Optimization of reactive ion beam sputtered Ta2O5 for III–V compounds

Autores: Jarno Reuna, Marianna Vuorinen, Riku Isoaho, Arto Aho, Severi Mäkelä, Arttu Hietalahti, Elina Anttola, Antti Tukiainen, Mircea Guina
Publicado en: Thin Solid Films, 2022, ISSN 0040-6090
Editor: Elsevier Sequoia
DOI: 10.1016/j.tsf.2022.139601

Hybrid quasi-3D optimization of grid architecture for single junction photovoltaic converters

Autores: Veikka Nikander, Jianguo Wei, Arto Aho, Ville Polojarvi, Antti Tukiainen, Mircea Guina
Publicado en: Optical and Quantum Electronics, Edición 53/4, 2021, ISSN 0306-8919
Editor: 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

Autores: Riku Isoaho, Timo Aho, Arto Aho, Antti Tukiainen, Jarno Reuna, Marianna Raappana, Mircea Guina
Publicado en: Solar Energy Materials and Solar Cells, 2021, ISSN 1879-3398
Editor: 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

Autores: Marianna Raappana, Tomi Koikkalainen, Ville Polojärvi, Arto Aho, Timo Aho, Riku Isoaho, Antti Tukiainen, Mircea Guina
Publicado en: Solar Energy Materials and Solar Cells, Edición 226, 2021, Página(s) 111097, ISSN 0927-0248
Editor: 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

Autores: Prabudeva Ramu, Arto Aho, Ville Polojärvi, Timo Aho, Antti Tukiainen, Teemu Hakkarainen, Jarno Reuna, Jari Lyytikäinen, Roosa Hytönen, Mircea Guina
Publicado en: Solar Energy Materials and Solar Cells, 2022, ISSN 1879-3398
Editor: Elsevier
DOI: 10.1016/j.solmat.2022.111982

Use of nanostructured alumina thin films in multilayer anti-reflective coatings

Autores: Jarno Reuna, Arto Aho, Riku Isoaho, Marianna Raappana, Timo Aho, Elina Anttola, Arttu Hietalahti, Antti Tukiainen, Mircea Guina
Publicado en: Nanotechnology, Edición 32/21, 2021, Página(s) 215602, ISSN 0957-4484
Editor: 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

Autores: E. Luna, M. Wu, T. Aoki, M. R. McCartney, J. Puustinen, J. Hilska, M. Guina, D. J. Smith, A. Trampert
Publicado en: Journal of Applied Physics, Edición 126/8, 2019, Página(s) 085305, ISSN 0021-8979
Editor: 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

Autores: 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
Publicado en: Nature Photonics, Edición 15/6, 2021, Página(s) 475-482, ISSN 1749-4885
Editor: Nature Pub. Group
DOI: 10.1038/s41566-021-00786-y

Ice resistance of hydrophobic fluoropolymerized nanostructuredalumina films for antireflective coatings

Autores: Jarno Reuna, Raul Kanter, Niklas Kandelin, Kaisa Kiuru, Heli Koivuluoto, Mircea Guina
Publicado en: Nano Express, 2023, ISSN 2632-959X
Editor: IOPSCIENCE
DOI: 10.1088/2632-959x/acad19

Wet etching of dilute nitride GaInNAs, GaInNAsSb, and GaNAsSb alloys lattice-matched to GaAs

Autores: Marianna Raappana, Ville Polojärvi, Arto Aho, Jaakko Mäkelä, Timo Aho, Antti Tukiainen, Pekka Laukkanen, Mircea Guina
Publicado en: Corrosion Science, Edición 136, 2018, Página(s) 268-274, ISSN 0010-938X
Editor: 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

Autores: Arto Aho, Riku Isoaho, Antti Tukiainen, Gabriele Gori, Roberta Campesato, Mircea Guina
Publicado en: Progress in Photovoltaics: Research and Applications, Edición 26/9, 2018, Página(s) 740-744, ISSN 1062-7995
Editor: 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

Autores: Timo Aho, Mircea Guina, Farid Elsehrawy, Federica Cappelluti, Marianna Raappana, Antti Tukiainen, A. B. M. Khairul Alam, Ismo Vartiainen, Markku Kuittinen, Tapio Niemi
Publicado en: Optics Express, Edición 26/6, 2018, Página(s) A331, ISSN 1094-4087
Editor: Optical Society of America
DOI: 10.1364/oe.26.00a331

Lattice‐matched four‐junction tandem solar cell including two dilute nitride bottom junctions

Autores: Arto Aho, Riku Isoaho, Lauri Hytönen, Timo Aho, Marianna Raappana, Ville Polojärvi, Antti Tukiainen, Jarno Reuna, Severi Mäkelä, Mircea Guina
Publicado en: Progress in Photovoltaics: Research and Applications, Edición 27/4, 2018, Página(s) 299-305, ISSN 1062-7995
Editor: 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

Autores: Riku Isoaho, Arto Aho, Antti Tukiainen, Timo Aho, Marianna Raappana, Turkka Salminen, Jarno Reuna, Mircea Guina
Publicado en: Solar Energy Materials and Solar Cells, Edición 195, 2019, Página(s) 198-203, ISSN 0927-0248
Editor: 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

Autores: J. Puustinen, J. Hilska, M. Guina
Publicado en: Journal of Crystal Growth, Edición 511, 2019, Página(s) 33-41, ISSN 0022-0248
Editor: 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

Autores: Jarno Reuna, Ville Polojärvi, Pertti Pääkkönen, Kimmo Lahtonen, Marianna Raappana, Timo Aho, Riku Isoaho, Arto Aho, Mika Valden, Mircea Guina
Publicado en: Optical Materials, Edición 96, 2019, Página(s) 109326, ISSN 0925-3467
Editor: Elsevier BV
DOI: 10.1016/j.optmat.2019.109326

Raman spectroscopy of GaSb1-xBix alloys with high Bi content

Autores: S. Souto, J. Hilska, Y. Galvão Gobato D. Souza, M. B. Andrade, E. Koivusalo, J. Puustinen, M. Guina
Publicado en: Applied Physics Letters, 2020, ISSN 1077-3118
Editor: 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

Autores: Arto Aho, Riku Isoaho, Marianna Raappana, Timo Aho, Elina Anttola, Jari Lyytikäinen, Arttu Hietalahti, Ville Polojärvi, Antti Tukiainen, Jarno Reuna, Leo Peltomaa, Mircea Guina
Publicado en: Progress in Photovoltaics: Research and Applications, Edición 29/7, 2021, Página(s) 869-875, ISSN 1062-7995
Editor: John Wiley & Sons Inc.
DOI: 10.1002/pip.3412

Bandgap energy model for GaInNAsSb/GaAs alloys with high N content and strain influence

Autores: Riku Isoaho, Arto Aho, Antti Tukiainen, Turkka Salminen, Mircea Guina
Publicado en: Journal of Crystal Growth, 2022, ISSN 0022-0248
Editor: 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

Autores: Riku Isoaho; Antti Tukiainen; Juuso Puutio; Arttu Hietalahti; Jarno Reuna; Antti Fihlman; Elina Anttola; Miika Keränen; Arto Aho; Mircea Guina
Publicado en: Solar Energy Materials and Solar Cels, Edición 2, 2022, ISSN 1879-3398
Editor: Elsevier
DOI: 10.1016/j.solmat.2022.111987

Optical Performance Assessment of Nanostructured Alumina Multilayer Antireflective Coatings Used in III–V Multijunction Solar Cells

Autores: Jarno Reuna, Arttu Hietalahti, Arto Aho, Riku Isoaho, Timo Aho, Marianna Vuorinen, Antti Tukiainen, Elina Anttola, Mircea Guina
Publicado en: ACS Applied Energy Materials, 2022, ISSN 2574-0962
Editor: ACS Publications
DOI: 10.1021/acsaem.2c00133

Quasi-3D Optimization of Grid Architecture for Photovoltaic Converters Using Solcore

Autores: Veikka Nikander, Jianguo Wei, Arto Aho, Ville Polojarvi, Antti Tukiainen, Mircea Guina
Publicado en: 2020 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD), 2020, Página(s) 51-52, ISBN 978-1-7281-6086-3
Editor: IEEE
DOI: 10.1109/nusod49422.2020.9217763

Advanced grid concept with external busbars applied on III-V multijunction solar cells

Autores: Marianna Raappana, Ninja Kajas, Arto Aho, Ville Polojarvi, Timo Aho, Riku Isoaho, Antti Tukiainen, Mircea Guina
Publicado en: 2020 47th IEEE Photovoltaic Specialists Conference (PVSC), 2020, Página(s) 0951-0954, ISBN 978-1-7281-6115-0
Editor: IEEE
DOI: 10.1109/pvsc45281.2020.9300991

Structured Metal/Polymer Back Reflectors for III–V Solar Cells

Autores: Timo Aho, Tapio Niemi, Federica Cappelluti, Antti Tukiainen, Farid Elsehrawy, Mircea Guina
Publicado en: Light, Energy and the Environment, 2017, Página(s) JW5A.23, ISBN 978-1-943580-36-1
Editor: OSA
DOI: 10.1364/pv.2017.jw5a.23

Passivation of GaInP and AlInP surfaces for III-V solar cells

Autores: Marianna Raappana, Ville Polojärvi, Timo Aho, Arto Aho, Riku Isoaho, Antti Tukiainen, Mircea Guina
Publicado en: 2017
Editor: European PV Solar Energy Conference and Exhibition

Broadband Anti-reflective Coatings for Multi-junction Solar Cells

Autores: Jarno Reuna, Ville Polojärvi, Timo Aho, Arto Aho, Riku Isoaho, Antti Tukiainen, Mircea Guina
Publicado en: 2017
Editor: Optics and Photonics days 2017

Four Junction Dilute Nitride Solar Cells for Next Generation CPV-systems

Autores: Arto Aho, Riku Isoaho, Timo Aho, Marianna Raappana, Ville Polojärvi, Antti Tukiainen, Mircea Guina
Publicado en: 2017
Editor: cpv-13, 13. International Conference on Concentrating Photovoltaic Systems

GaInNAsSb-based Four Junction Solar Cells on GaAs and Ge Substrates

Autores: Arto Aho, Riku Isoaho, Marianna Raappana, Ville Polojärvi, Lauri Hytönen, Timo Aho, Antti Tukiainen, Mircea Guina
Publicado en: 2018
Editor: cpv-14, 14. International Conference on Concentrating Photovoltaic Systems

Multijunction solar cells: path to conversion efficiencies exceeding 50%

Autores: Marianna Raappana, Arto Aho, Ville Polojärvi, Timo Aho, Riku Isoaho, Lauri Hytönen, Antti Tukiainen, Mircea Guina
Publicado en: 2018
Editor: Optics and Photonics Days 2018

Metal/Polymer Back Reflectors with Diffraction Gratings for Light Trapping in III-V Solar Cells

Autores: Timo Aho, Mircea Guina, F. Elsehrawy, F. Cappelluti, Marianna Raappana, Antti Tukiainen, A B M Khairul Alam, I. Vartiainen, M. Kuittinen, and T. Niemi
Publicado en: 2018
Editor: WCPEC-7 conference

Comparison of ‘shallow’ and ‘deep’ junction architectures for MBE-grown InAs/GaAs quantum dot solar cells

Autores: Antti Tukiainen, Jari Lyytikäinen, Timo Aho, Eero Halonen, Marianna Raappana, Federica Cappelluti, and Mircea Guina
Publicado en: 2018
Editor: WCPEC-7 conference

High N-concentration GaInNAsSb materials for III–V solar cells with bandgaps below 0.8 eV

Autores: Riku Isoaho, Arto Aho, Severi Mäkelä, Lauri Hytönen, Mircea Guina
Publicado en: 2018
Editor: 20th International Conference on Molecular Beam Epitaxy (ICMBE 2018)

Dilute Nitride Solar Cells - Technology Developments Towards 50% Efficiency

Autores: Mircea Guina, Antti Tukiainen, Arto Aho, Ville Polojärvi
Publicado en: 2017
Editor: 2017 MRS Spring Meeting & Exhibit

Temperature dependent characteristics of GaInP/GaAs/GaInNAsSb solar cell under simulated AM0 spectra

Autores: Riku Isoaho, Arto Aho, Antti Tukiainen, Mircea Guina
Publicado en: 2017
Editor: 44th IEEE Photovoltaics Specialist Conference

Design considerations on GaInNAs solar cells with back surface reflectors

Autores: Antti Tukiainen, Arto Aho, Timo Aho, Ville Polojärvi, Mircea Guina
Publicado en: 2017
Editor: 44th IEEE Photovoltaics Speacialist Conference

High Efficiency Lattice Matched Four-Junction Solar Cells on GaAs

Autores: Arto Aho, Riku Isoaho, Marianna Raappana, Timo Aho, Ville Polojärvi, Antti Tukiainen, Mircea Guina
Publicado en: The 20th European Workshop on Molecular Beam Epitaxy - EuroMBE 2019, Edición Feb 17th to 20th, 2019, 2019
Editor: EuroMBE 2019

Novel III-V Heterostructures for High Efficiency Solar Cells

Autores: Ville Polojärvi, Arto Aho, Antti Tukiainen, Marianna Raappana, Timo Aho, Riku Isoaho, Mircea Guina
Publicado en: Optics and Photonics days 2017 - Oulu, Finland, 2017
Editor: Optics and Photonics days 2017, Oulu, Finland.

High Efficiency Lattice-Matched 4J Space Solar Cells on GaAs

Autores: Arto Aho, Arttu Hietalahti, Mircea Guina, Marianna Raappana, Riku Isoaho, Timo Aho, Ville Polojarvi, Antti Tukiainen, Elina Anttola, Severi Makela, Jarno Reuna
Publicado en: 2019 European Space Power Conference (ESPC), 2019, Página(s) 1-3, ISBN 978-1-7281-2126-0
Editor: IEEE
DOI: 10.1109/espc.2019.8932092

Performance of Solar Cell Grids based on Ag, Au, and Al for Cost-Effective Manufacturing

Autores: Marianna Raappana, Arto Aho, Timo Aho, Riku Isoaho, Elina Anttola, Ninja Kajas, Ville Polojarvi, Antti Tukiainen, Mircea Guina
Publicado en: 2019 European Space Power Conference (ESPC), 2019, Página(s) 1-3, ISBN 978-1-7281-2126-0
Editor: IEEE
DOI: 10.1109/espc.2019.8932002

Enhancement of EQE for MBE grown InAs/GaAs Quantum Dot Solar Cell with Back Reflector

Autores: Timo Aho, Antti Tukiainen, Sanna Ranta, Farid Elsehrawy, Marianna Raappana, Riku Isoaho, Arto Aho, Federica Cappelluti, Mircea Guina
Publicado en: 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC), 2019, Página(s) 2593-2596, ISBN 978-1-7281-0494-2
Editor: 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

Autores: Arto Aho, Mircea Guina, Riku Isoaho, Marianna Raappana, Timo Aho, Ville Polojarvi, Antti Tukiainen, Elina Anttola, Severi Makela, Jarno Reuna
Publicado en: 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC), 2019, Página(s) 0041-0044, ISBN 978-1-7281-0494-2
Editor: IEEE
DOI: 10.1109/pvsc40753.2019.8980658

Narrow Bandgap Dilute Nitride Materials for 6-junction Space Solar Cells

Autores: Riku Isoaho, Arto Aho, Antti Tukiainen, Timo Aho, Marianna Raappana, Turkka Salminen, Jarno Reuna, Mircea Guina
Publicado en: 2019 European Space Power Conference (ESPC), 2019, Página(s) 1-3, ISBN 978-1-7281-2126-0
Editor: IEEE
DOI: 10.1109/espc47532.2019.9049263

Back Reflector with Diffractive Gratings for Light-Trapping in Thin-Film III-V Solar Cells

Autores: Timo Aho, Antti Tukiainen, Farid Elsehrawy, Sanna Ranta, Marianna Raappana, Arto Aho, Riku Isoaho, Federica Cappelluti, Mircea Guina
Publicado en: 2019 European Space Power Conference (ESPC), 2019, Página(s) 1-4, ISBN 978-1-7281-2126-0
Editor: IEEE
DOI: 10.1109/espc47532.2019.9049262

Quantum Dot-Based Thin-Film III–V Solar Cells

Autores: 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
Publicado en: Quantum Dot Optoelectronic Devices, Edición 27, 2020, Página(s) 1-48, ISBN 978-3-030-35812-9
Editor: Springer International Publishing
DOI: 10.1007/978-3-030-35813-6_1

Chapter 5 - Molecular Beam Epitaxy of Dilute Nitride Optoelectronic Devices

Autores: Mircea Guina, Shu M. Wang, Arto Aho
Publicado en: Molecular Beam Epitaxy (Second Edition), 2018, Página(s) 73-94
Editor: Elsevier
DOI: 10.1016/B978-0-12-812136-8.00005-0

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