17.6% Efficient tricrystalline silicon solar cells with spatially uniform texture
- verfasst von
- Christian Schmiga, Jan Schmidt, Axel Metz, Arthur Endrös, Rudolf Hezel
- Abstract
Up to now solar cells fabricated on tricrystalline Czochralski-grown silicon (tri-Si) have shown relatively low short-circuit current densities of about 31-33 mA/cm2 because the three {110}-oriented grains cannot effectively be textured by commonly used anisotropic etching solutions. In this work, we have optimised a novel chemical texturing step for tri-Si and integrated it successfully into our solar cell process. Metal/insulator/semiconductor-contacted phosphorus.diffused n+p junction silicon solar cells with a silicon.dioxide-passivated rear surface and evaporated aluminium contacts were manufactured, featuring a spatially uniform surface texture over all three grains on both cell sides. Despite the simple processing sequence and cell structure, an independently confirmed record efficiency of 17.6% has been achieved. This excellent efficiency is mainly due to an increased short-circuit current density of 37mA/m2 obtained by substantially reduced reflection and enhanced light trapping.
- Externe Organisation(en)
-
Institut für Solarenergieforschung GmbH (ISFH)
Shell
- Typ
- Artikel
- Journal
- Progress in Photovoltaics: Research and Applications
- Band
- 11
- Seiten
- 33-38
- Anzahl der Seiten
- 6
- ISSN
- 1062-7995
- Publikationsdatum
- 16.12.2002
- Publikationsstatus
- Veröffentlicht
- Peer-reviewed
- Ja
- ASJC Scopus Sachgebiete
- Elektronische, optische und magnetische Materialien, Erneuerbare Energien, Nachhaltigkeit und Umwelt, Physik der kondensierten Materie, Elektrotechnik und Elektronik
- Ziele für nachhaltige Entwicklung
- SDG 7 – Erschwingliche und saubere Energie
- Elektronische Version(en)
-
https://doi.org/10.1002/pip.479 (Zugang:
Geschlossen)