Performance Study of Lattice-Matched Multijunction Solar Cells Incorporating GaInNAsSb Junctions with 0.7 – 1.4 eV Bandgap
Aho, Arto; Isoaho, Riku; Raappana, Marianna; Aho, Timo; Polojärvi, Ville; Tukiainen, Antti; Anttola, Elina; Mäkelä, Severi; Reuna, Jarno; Guina, Mircea (2020)
Lataukset:
Aho, Arto
Isoaho, Riku
Raappana, Marianna
Aho, Timo
Polojärvi, Ville
Tukiainen, Antti
Anttola, Elina
Mäkelä, Severi
Reuna, Jarno
Guina, Mircea
IEEE
2020
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:tuni-202002122025
https://urn.fi/URN:NBN:fi:tuni-202002122025
Kuvaus
Peer reviewed
Tiivistelmä
We report on the progress made in the development of lattice-matched multijunction solar cells employing dilute nitride sub-cells. In particular, we report on upright four-junction architecture with bandgaps of 0.9 eV, 1.2 eV, 1.4 eV and 1.9 eV The four-junction solar cell includes two dilute nitride sub-junctions. This structure exhibited an efficiency of 29% at 1-sun AM1.5D illumination, which is the highest level reported for such architecture so far. In addition, we report on the progress in developing lattice-matched solar cell materials with a bandgap down to 0.7 eV, which enable the fabrication of highly efficient five- or six-junction solar cells on GaAs. We estimate that under 1000 suns illumination these five- or six-junction cells could reach over 50% efficiencies.
Kokoelmat
- TUNICRIS-julkaisut [17001]