Materials Map

Discover the materials research landscape. Find experts, partners, networks.

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The Materials Map is an open tool for improving networking and interdisciplinary exchange within materials research. It enables cross-database search for cooperation and network partners and discovering of the research landscape.

The dashboard provides detailed information about the selected scientist, e.g. publications. The dashboard can be filtered and shows the relationship to co-authors in different diagrams. In addition, a link is provided to find contact information.

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Materials Map under construction

The Materials Map is still under development. In its current state, it is only based on one single data source and, thus, incomplete and contains duplicates. We are working on incorporating new open data sources like ORCID to improve the quality and the timeliness of our data. We will update Materials Map as soon as possible and kindly ask for your patience.

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1.080 Topics available

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693.932 PEOPLE
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Naji, M.
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in Cooperation with on an Cooperation-Score of 37%

Topics

Publications (8/8 displayed)

  • 2022Luminescent (Er,Ho)2O3 thin films by ALD to enhance the performance of silicon solar cells12citations
  • 2021Luminescent (Er,Ho)2O3 thin films by ALD to enhance the performance of silicon solar cells12citations
  • 2021Room-temperature electron spin polarization exceeding 90% in an opto-spintronic semiconductor nanostructure via remote spin filtering48citations
  • 2021Room-temperature electron spin polarization exceeding 90% in an opto-spintronic semiconductor nanostructure via remote spin filtering48citations
  • 2019V-groove etched 1-eV-GaInNAs nipi solar cell6citations
  • 2019Influence of ex-situ annealing on the properties of MgF2 thin films deposited by electron beam evaporation10citations
  • 2016High-efficiency GaInP/GaAs/GaInNAs solar cells grown by combined MBE-MOCVD technique32citations
  • 2016Combined MBE-MOCVD process for high-efficiency multijunction solar cellscitations

Places of action

Chart of shared publication
Lastusaari, Mika
2 / 12 shared
Safdar, Muhammad
2 / 4 shared
Savin, Hele
2 / 75 shared
Karppinen, Maarit
2 / 60 shared
Ghazy, Amr
2 / 3 shared
Guina, Mircea
8 / 36 shared
Tukiainen, Antti
4 / 23 shared
Takayama, Junichi
2 / 2 shared
Buyanova, Irina
1 / 13 shared
Chen, Weimin
1 / 23 shared
Isoaho, Riku
5 / 9 shared
Murayama, Akihiro
2 / 2 shared
Höjer, Pontus
2 / 2 shared
Sato, Shino
2 / 2 shared
Hiura, Satoshi
2 / 2 shared
Polojarvi, Ville
1 / 2 shared
Hakkarainen, Teemu
1 / 5 shared
Huang, Yuqing
2 / 5 shared
Polojärvi, Ville
4 / 6 shared
Chen, Weimin M.
1 / 6 shared
Hakkarainen, Teemu Valtteri
1 / 9 shared
Buyanova, Irina A.
1 / 9 shared
Erol, Ayse
1 / 7 shared
Muhammetgulyyev, Agageldi
1 / 1 shared
Kinaci, Baris
1 / 1 shared
Yalcin, Yesim
1 / 1 shared
Cetinkaya, Caglar
1 / 1 shared
Kuruoglu, Furkan
1 / 1 shared
Aho, Timo
3 / 4 shared
Valden, Mika
1 / 37 shared
Lahtonen, Kimmo
1 / 38 shared
Reuna, Jarno
1 / 2 shared
Raappana, Marianna
3 / 3 shared
Pääkkönen, Pertti
1 / 2 shared
Campesato, Roberta
2 / 2 shared
Gori, Gabriele
2 / 2 shared
Casale, Mariacristina
2 / 2 shared
Greco, Erminio
2 / 2 shared
Chart of publication period
2022
2021
2019
2016

Co-Authors (by relevance)

  • Lastusaari, Mika
  • Safdar, Muhammad
  • Savin, Hele
  • Karppinen, Maarit
  • Ghazy, Amr
  • Guina, Mircea
  • Tukiainen, Antti
  • Takayama, Junichi
  • Buyanova, Irina
  • Chen, Weimin
  • Isoaho, Riku
  • Murayama, Akihiro
  • Höjer, Pontus
  • Sato, Shino
  • Hiura, Satoshi
  • Polojarvi, Ville
  • Hakkarainen, Teemu
  • Huang, Yuqing
  • Polojärvi, Ville
  • Chen, Weimin M.
  • Hakkarainen, Teemu Valtteri
  • Buyanova, Irina A.
  • Erol, Ayse
  • Muhammetgulyyev, Agageldi
  • Kinaci, Baris
  • Yalcin, Yesim
  • Cetinkaya, Caglar
  • Kuruoglu, Furkan
  • Aho, Timo
  • Valden, Mika
  • Lahtonen, Kimmo
  • Reuna, Jarno
  • Raappana, Marianna
  • Pääkkönen, Pertti
  • Campesato, Roberta
  • Gori, Gabriele
  • Casale, Mariacristina
  • Greco, Erminio
OrganizationsLocationPeople

document

Combined MBE-MOCVD process for high-efficiency multijunction solar cells

  • Polojärvi, Ville
  • Isoaho, Riku
  • Campesato, Roberta
  • Aho, Timo
  • Gori, Gabriele
  • Aho, Arto
  • Casale, Mariacristina
  • Guina, Mircea
  • Tukiainen, Antti
  • Greco, Erminio
  • Raappana, Marianna
Abstract

We present a fabrication method for high-efficiency GaInP/GaAs/GaInNAs triple junction solar cells, employing molecular beam epitaxy (MBE) and metal-organic chemical vapor deposition (MOCVD) processes. The method combines the advantages of both epitaxial techniques, the high quality of MBE-grown dilute nitrides and fast growth rate offered by MOCVD for standard III-V compounds. The GaInNAs bottom junction is first grown by MBE and then the rest of the structure is deposited by MOCVD. Triple-junction cells with conversion efficiency of ~29% at AM0 are demonstrated, opening a new perspective on cost-effective fabrication of high-efficiency multijunction solar cells for space and concentrated photovoltaic applications.

Topics
  • impedance spectroscopy
  • compound
  • nitride
  • chemical vapor deposition