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Multiple Core-Shell Silicon Nanowire Based Heterojunction Solar Cells

Multiple Core-Shell Silicon Nanowire Based Heterojunction Solar Cells

Kategori
Vitenskapelig artikkel
Sammendrag
Silicon nanowire-based solar cells received increasing attention due to their enhanced light harvesting properties and the potential to use low-cost materials to produce solar cells comparable with those on costly monocrystalline counterparts. It is essential to improve the performance of nanowire solar cells by suppressing surface recombination. A multiple core (crystalline silicon nanowires)–shell silicon nanowire-based heterojunction solar cell has been fabricated to deal with this problem. To this end, an ultrathin passivating Al2O3 tunnel layer was deposited on the highly doped p-type a-Si:H emitter prior to a transparent conducting oxide by atomic layer deposition (ALD). Both open circuit voltage and current density increase significantly due to the insertion of the ultrathin Al2O3 layer. An efficiency of 10.0% has been reached by using this multiple core–shell structure.
Språk
Engelsk
Forfatter(e)
Institusjon(er)
  • Tyskland
  • SINTEF Industri / Bærekraftig energiteknologi
  • SINTEF Industri / Metallproduksjon og prosessering
År
Publisert i
Journal of Physical Chemistry C
ISSN
1932-7447
Forlag
American Chemical Society (ACS)
Årgang
117
Hefte nr.
2
Side(r)
1091 - 1096