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

III–V-aurinkokennojen rappeutuminen avaruuden säteilyn vaikutuksesta

Autori: Susanna Rouru
Pubblicato in: 2021
Editore: Tampere University

Moniliitoskennorakenteen optimointi Simulink-mallinnuksella

Autori: Leo Peltomaa
Pubblicato in: 2020
Editore: Tampere University

Moniliitosaurinkokennojen arkkitehtuurien kehitys 2020-luvulla ja rakenteiden fysikaaliset rajoitteet

Autori: Pokela, Simo
Pubblicato in: 2022
Editore: Tampere University

Front contact optimization for concentrator III-V semiconductor solar cells

Autori: Elina Anttola
Pubblicato in: 2021
Editore: Tampere University

Utilizing satellite-based local solar spectra for solar cell calibration

Autori: Arttu Hietalahti
Pubblicato in: 2020
Editore: Tampere University

III–V-Puolijohdeaurinkokennojen Mallinnus Diodiyhtälöllä

Autori: Veikka Nikander
Pubblicato in: 2020
Editore: Tampere University

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

Autori: Severi Mäkelä
Pubblicato in: 2020
Editore: Tampere University

Performance of silver contacts in III-V solar cells

Autori: Antti Fihlman
Pubblicato in: 2022
Editore: Tampere University

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

Autori: Eero Hyötylä
Pubblicato in: 2018
Editore: Tampere University of Technology

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

Autori: Ninja Kajas
Pubblicato in: 2018
Editore: Tampere University of Technology

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

Autori: Tomi Koikkalainen
Pubblicato in: 2018
Editore: Tampere University of Technology

Heat management in high-efficiency photovoltaics

Autori: Lauri Hytönen
Pubblicato in: 2018
Editore: Tampere University of Technology

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

Autori: Teemu Hurmerinta
Pubblicato in: 2018
Editore: Tampere University of Technology

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

Autori: Elina Anttola
Pubblicato in: 2019
Editore: 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

Autori: Ninja Kajas
Pubblicato in: 2019
Editore: Tampere University

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

Autori: Riku Isoaho
Pubblicato in: 2022
Editore: Tampere University

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

Autori: Timo Aho
Pubblicato in: 2020
Editore: Tampere University

Advanced Functional Antireflection Coatings for Broadband Multijunction Solar Cells

Autori: Jarno Reuna
Pubblicato in: 2022
Editore: Tampere University

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

Autori: Timo Aho, Farid Elsehrawy, Antti Tukiainen, Sanna Ranta, Marianna Raappana, Riku Isoaho, Arto Aho, Arttu Hietalahti, Federica Cappelluti, Mircea Guina
Pubblicato in: Applied Optics, Numero 59/21, 2020, Pagina/e 6304, ISSN 1559-128X
Editore: OSA Publishing
DOI: 10.1364/ao.396590

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

Autori: Amr Ghazy, Muhammad Safdar, Mika Lastusaari, Arto Aho, Antti Tukiainen, Hele Savin, Mircea Guina, Maarit Karppinen
Pubblicato in: Solar Energy Materials and Solar Cells, Numero 219, 2021, Pagina/e 110787, ISSN 0927-0248
Editore: Elsevier BV
DOI: 10.1016/j.solmat.2020.110787

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

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

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

Autori: Veikka Nikander, Jianguo Wei, Arto Aho, Ville Polojarvi, Antti Tukiainen, Mircea Guina
Pubblicato in: Optical and Quantum Electronics, Numero 53/4, 2021, ISSN 0306-8919
Editore: 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

Autori: Riku Isoaho, Timo Aho, Arto Aho, Antti Tukiainen, Jarno Reuna, Marianna Raappana, Mircea Guina
Pubblicato in: Solar Energy Materials and Solar Cells, 2021, ISSN 1879-3398
Editore: 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

Autori: Marianna Raappana, Tomi Koikkalainen, Ville Polojärvi, Arto Aho, Timo Aho, Riku Isoaho, Antti Tukiainen, Mircea Guina
Pubblicato in: Solar Energy Materials and Solar Cells, Numero 226, 2021, Pagina/e 111097, ISSN 0927-0248
Editore: 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

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

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

Autori: Jarno Reuna, Arto Aho, Riku Isoaho, Marianna Raappana, Timo Aho, Elina Anttola, Arttu Hietalahti, Antti Tukiainen, Mircea Guina
Pubblicato in: Nanotechnology, Numero 32/21, 2021, Pagina/e 215602, ISSN 0957-4484
Editore: 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

Autori: E. Luna, M. Wu, T. Aoki, M. R. McCartney, J. Puustinen, J. Hilska, M. Guina, D. J. Smith, A. Trampert
Pubblicato in: Journal of Applied Physics, Numero 126/8, 2019, Pagina/e 085305, ISSN 0021-8979
Editore: 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

Autori: 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
Pubblicato in: Nature Photonics, Numero 15/6, 2021, Pagina/e 475-482, ISSN 1749-4885
Editore: Nature Pub. Group
DOI: 10.1038/s41566-021-00786-y

Ice resistance of hydrophobic fluoropolymerized nanostructuredalumina films for antireflective coatings

Autori: Jarno Reuna, Raul Kanter, Niklas Kandelin, Kaisa Kiuru, Heli Koivuluoto, Mircea Guina
Pubblicato in: Nano Express, 2023, ISSN 2632-959X
Editore: IOPSCIENCE
DOI: 10.1088/2632-959x/acad19

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

Autori: Marianna Raappana, Ville Polojärvi, Arto Aho, Jaakko Mäkelä, Timo Aho, Antti Tukiainen, Pekka Laukkanen, Mircea Guina
Pubblicato in: Corrosion Science, Numero 136, 2018, Pagina/e 268-274, ISSN 0010-938X
Editore: 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

Autori: Arto Aho, Riku Isoaho, Antti Tukiainen, Gabriele Gori, Roberta Campesato, Mircea Guina
Pubblicato in: Progress in Photovoltaics: Research and Applications, Numero 26/9, 2018, Pagina/e 740-744, ISSN 1062-7995
Editore: 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

Autori: Timo Aho, Mircea Guina, Farid Elsehrawy, Federica Cappelluti, Marianna Raappana, Antti Tukiainen, A. B. M. Khairul Alam, Ismo Vartiainen, Markku Kuittinen, Tapio Niemi
Pubblicato in: Optics Express, Numero 26/6, 2018, Pagina/e A331, ISSN 1094-4087
Editore: Optical Society of America
DOI: 10.1364/oe.26.00a331

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

Autori: Arto Aho, Riku Isoaho, Lauri Hytönen, Timo Aho, Marianna Raappana, Ville Polojärvi, Antti Tukiainen, Jarno Reuna, Severi Mäkelä, Mircea Guina
Pubblicato in: Progress in Photovoltaics: Research and Applications, Numero 27/4, 2018, Pagina/e 299-305, ISSN 1062-7995
Editore: 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

Autori: Riku Isoaho, Arto Aho, Antti Tukiainen, Timo Aho, Marianna Raappana, Turkka Salminen, Jarno Reuna, Mircea Guina
Pubblicato in: Solar Energy Materials and Solar Cells, Numero 195, 2019, Pagina/e 198-203, ISSN 0927-0248
Editore: 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

Autori: J. Puustinen, J. Hilska, M. Guina
Pubblicato in: Journal of Crystal Growth, Numero 511, 2019, Pagina/e 33-41, ISSN 0022-0248
Editore: 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

Autori: Jarno Reuna, Ville Polojärvi, Pertti Pääkkönen, Kimmo Lahtonen, Marianna Raappana, Timo Aho, Riku Isoaho, Arto Aho, Mika Valden, Mircea Guina
Pubblicato in: Optical Materials, Numero 96, 2019, Pagina/e 109326, ISSN 0925-3467
Editore: Elsevier BV
DOI: 10.1016/j.optmat.2019.109326

Raman spectroscopy of GaSb1-xBix alloys with high Bi content

Autori: S. Souto, J. Hilska, Y. Galvão Gobato D. Souza, M. B. Andrade, E. Koivusalo, J. Puustinen, M. Guina
Pubblicato in: Applied Physics Letters, 2020, ISSN 1077-3118
Editore: 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

Autori: Arto Aho, Riku Isoaho, Marianna Raappana, Timo Aho, Elina Anttola, Jari Lyytikäinen, Arttu Hietalahti, Ville Polojärvi, Antti Tukiainen, Jarno Reuna, Leo Peltomaa, Mircea Guina
Pubblicato in: Progress in Photovoltaics: Research and Applications, Numero 29/7, 2021, Pagina/e 869-875, ISSN 1062-7995
Editore: John Wiley & Sons Inc.
DOI: 10.1002/pip.3412

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

Autori: Riku Isoaho, Arto Aho, Antti Tukiainen, Turkka Salminen, Mircea Guina
Pubblicato in: Journal of Crystal Growth, 2022, ISSN 0022-0248
Editore: 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

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

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

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

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

Autori: Veikka Nikander, Jianguo Wei, Arto Aho, Ville Polojarvi, Antti Tukiainen, Mircea Guina
Pubblicato in: 2020 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD), 2020, Pagina/e 51-52, ISBN 978-1-7281-6086-3
Editore: IEEE
DOI: 10.1109/nusod49422.2020.9217763

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

Autori: Marianna Raappana, Ninja Kajas, Arto Aho, Ville Polojarvi, Timo Aho, Riku Isoaho, Antti Tukiainen, Mircea Guina
Pubblicato in: 2020 47th IEEE Photovoltaic Specialists Conference (PVSC), 2020, Pagina/e 0951-0954, ISBN 978-1-7281-6115-0
Editore: IEEE
DOI: 10.1109/pvsc45281.2020.9300991

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

Autori: Timo Aho, Tapio Niemi, Federica Cappelluti, Antti Tukiainen, Farid Elsehrawy, Mircea Guina
Pubblicato in: Light, Energy and the Environment, 2017, Pagina/e JW5A.23, ISBN 978-1-943580-36-1
Editore: OSA
DOI: 10.1364/pv.2017.jw5a.23

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

Autori: Marianna Raappana, Ville Polojärvi, Timo Aho, Arto Aho, Riku Isoaho, Antti Tukiainen, Mircea Guina
Pubblicato in: 2017
Editore: European PV Solar Energy Conference and Exhibition

Broadband Anti-reflective Coatings for Multi-junction Solar Cells

Autori: Jarno Reuna, Ville Polojärvi, Timo Aho, Arto Aho, Riku Isoaho, Antti Tukiainen, Mircea Guina
Pubblicato in: 2017
Editore: Optics and Photonics days 2017

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

Autori: Arto Aho, Riku Isoaho, Timo Aho, Marianna Raappana, Ville Polojärvi, Antti Tukiainen, Mircea Guina
Pubblicato in: 2017
Editore: cpv-13, 13. International Conference on Concentrating Photovoltaic Systems

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

Autori: Arto Aho, Riku Isoaho, Marianna Raappana, Ville Polojärvi, Lauri Hytönen, Timo Aho, Antti Tukiainen, Mircea Guina
Pubblicato in: 2018
Editore: cpv-14, 14. International Conference on Concentrating Photovoltaic Systems

Multijunction solar cells: path to conversion efficiencies exceeding 50%

Autori: Marianna Raappana, Arto Aho, Ville Polojärvi, Timo Aho, Riku Isoaho, Lauri Hytönen, Antti Tukiainen, Mircea Guina
Pubblicato in: 2018
Editore: Optics and Photonics Days 2018

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

Autori: Timo Aho, Mircea Guina, F. Elsehrawy, F. Cappelluti, Marianna Raappana, Antti Tukiainen, A B M Khairul Alam, I. Vartiainen, M. Kuittinen, and T. Niemi
Pubblicato in: 2018
Editore: WCPEC-7 conference

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

Autori: Antti Tukiainen, Jari Lyytikäinen, Timo Aho, Eero Halonen, Marianna Raappana, Federica Cappelluti, and Mircea Guina
Pubblicato in: 2018
Editore: WCPEC-7 conference

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

Autori: Riku Isoaho, Arto Aho, Severi Mäkelä, Lauri Hytönen, Mircea Guina
Pubblicato in: 2018
Editore: 20th International Conference on Molecular Beam Epitaxy (ICMBE 2018)

Dilute Nitride Solar Cells - Technology Developments Towards 50% Efficiency

Autori: Mircea Guina, Antti Tukiainen, Arto Aho, Ville Polojärvi
Pubblicato in: 2017
Editore: 2017 MRS Spring Meeting & Exhibit

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

Autori: Riku Isoaho, Arto Aho, Antti Tukiainen, Mircea Guina
Pubblicato in: 2017
Editore: 44th IEEE Photovoltaics Specialist Conference

Design considerations on GaInNAs solar cells with back surface reflectors

Autori: Antti Tukiainen, Arto Aho, Timo Aho, Ville Polojärvi, Mircea Guina
Pubblicato in: 2017
Editore: 44th IEEE Photovoltaics Speacialist Conference

High Efficiency Lattice Matched Four-Junction Solar Cells on GaAs

Autori: Arto Aho, Riku Isoaho, Marianna Raappana, Timo Aho, Ville Polojärvi, Antti Tukiainen, Mircea Guina
Pubblicato in: The 20th European Workshop on Molecular Beam Epitaxy - EuroMBE 2019, Numero Feb 17th to 20th, 2019, 2019
Editore: EuroMBE 2019

Novel III-V Heterostructures for High Efficiency Solar Cells

Autori: Ville Polojärvi, Arto Aho, Antti Tukiainen, Marianna Raappana, Timo Aho, Riku Isoaho, Mircea Guina
Pubblicato in: Optics and Photonics days 2017 - Oulu, Finland, 2017
Editore: Optics and Photonics days 2017, Oulu, Finland.

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

Autori: Arto Aho, Arttu Hietalahti, Mircea Guina, Marianna Raappana, Riku Isoaho, Timo Aho, Ville Polojarvi, Antti Tukiainen, Elina Anttola, Severi Makela, Jarno Reuna
Pubblicato in: 2019 European Space Power Conference (ESPC), 2019, Pagina/e 1-3, ISBN 978-1-7281-2126-0
Editore: IEEE
DOI: 10.1109/espc.2019.8932092

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

Autori: Marianna Raappana, Arto Aho, Timo Aho, Riku Isoaho, Elina Anttola, Ninja Kajas, Ville Polojarvi, Antti Tukiainen, Mircea Guina
Pubblicato in: 2019 European Space Power Conference (ESPC), 2019, Pagina/e 1-3, ISBN 978-1-7281-2126-0
Editore: IEEE
DOI: 10.1109/espc.2019.8932002

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

Autori: Timo Aho, Antti Tukiainen, Sanna Ranta, Farid Elsehrawy, Marianna Raappana, Riku Isoaho, Arto Aho, Federica Cappelluti, Mircea Guina
Pubblicato in: 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC), 2019, Pagina/e 2593-2596, ISBN 978-1-7281-0494-2
Editore: 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

Autori: Arto Aho, Mircea Guina, Riku Isoaho, Marianna Raappana, Timo Aho, Ville Polojarvi, Antti Tukiainen, Elina Anttola, Severi Makela, Jarno Reuna
Pubblicato in: 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC), 2019, Pagina/e 0041-0044, ISBN 978-1-7281-0494-2
Editore: IEEE
DOI: 10.1109/pvsc40753.2019.8980658

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

Autori: Riku Isoaho, Arto Aho, Antti Tukiainen, Timo Aho, Marianna Raappana, Turkka Salminen, Jarno Reuna, Mircea Guina
Pubblicato in: 2019 European Space Power Conference (ESPC), 2019, Pagina/e 1-3, ISBN 978-1-7281-2126-0
Editore: IEEE
DOI: 10.1109/espc47532.2019.9049263

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

Autori: Timo Aho, Antti Tukiainen, Farid Elsehrawy, Sanna Ranta, Marianna Raappana, Arto Aho, Riku Isoaho, Federica Cappelluti, Mircea Guina
Pubblicato in: 2019 European Space Power Conference (ESPC), 2019, Pagina/e 1-4, ISBN 978-1-7281-2126-0
Editore: IEEE
DOI: 10.1109/espc47532.2019.9049262

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

Autori: 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
Pubblicato in: Quantum Dot Optoelectronic Devices, Numero 27, 2020, Pagina/e 1-48, ISBN 978-3-030-35812-9
Editore: Springer International Publishing
DOI: 10.1007/978-3-030-35813-6_1

Chapter 5 - Molecular Beam Epitaxy of Dilute Nitride Optoelectronic Devices

Autori: Mircea Guina, Shu M. Wang, Arto Aho
Pubblicato in: Molecular Beam Epitaxy (Second Edition), 2018, Pagina/e 73-94
Editore: Elsevier
DOI: 10.1016/B978-0-12-812136-8.00005-0

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