InP nanowire array solar cells achieving 13.8% efficiency by exceeding the ray optics limit

Jesper Wallentin, Nicklas Anttu, Damir Asoli, Maria Huffman, Ingvar Åberg, Martin H. Magnusson, Gerald Siefer, Peter Fuss-Kailuweit, Frank Dimroth, Bernd Witzigmann, H. Q. Xu, Lars Samuelson, Knut Deppert, Magnus T. Borgström*

*Tämän työn vastaava kirjoittaja

Tutkimustuotos: LehtiartikkeliArtikkeliTieteellinenvertaisarvioitu

925 Sitaatiot (Scopus)

Abstrakti

Photovoltaics based on nanowire arrays could reduce cost and materials consumption compared with planar devices but have exhibited low efficiency of light absorption and carrier collection. We fabricated a variety of millimeter-sized arrays of p-type/intrinsic/n-type (p-i-n) doped InP nanowires and found that the nanowire diameter and the length of the top n-segment were critical for cell performance. Efficiencies up to 13.8% (comparable to the record planar InP cell) were achieved by using resonant light trapping in 180-nanometer-diameter nanowires that only covered 12% of the surface. The share of sunlight converted into photocurrent (71%) was six times the limit in a simple ray optics description. Furthermore, the highest open-circuit voltage of 0.906 volt exceeds that of its planar counterpart, despite about 30 times higher surface-to-volume ratio of the nanowire cell.

AlkuperäiskieliEnglanti
Sivut1057-1060
Sivumäärä4
JulkaisuScience
Vuosikerta339
Numero6123
DOI - pysyväislinkit
TilaJulkaistu - 1 maaliskuuta 2013
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

Sormenjälki

Sukella tutkimusaiheisiin 'InP nanowire array solar cells achieving 13.8% efficiency by exceeding the ray optics limit'. Ne muodostavat yhdessä ainutlaatuisen sormenjäljen.

Viittausmuodot