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InP Nanowire Array Solar Cells Achieving 13.8% Efficiency by Exceeding the Ray Optics Limit.

Wallentin, Jesper LU ; Anttu, Nicklas LU ; Asoli, Damir ; Huffman, Maria ; Aberg, Ingvar ; Magnusson, Martin LU ; Siefer, Gerald ; Fuss-Kailuweit, Peter ; Dimroth, Frank and Witzigmann, Bernd , et al. (2013) In Science 339(6123). p.1057-1060
Abstract
Photovoltaics based on nanowire arrays could reduce cost and materials consumption compared to planar devices, but have exhibited low efficiency of light absorption and carrier collection. We fabricated a variety of millimeter-sized arrays of 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 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... (More)
Photovoltaics based on nanowire arrays could reduce cost and materials consumption compared to planar devices, but have exhibited low efficiency of light absorption and carrier collection. We fabricated a variety of millimeter-sized arrays of 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 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. (Less)
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Science
volume
339
issue
6123
pages
1057 - 1060
publisher
American Association for the Advancement of Science (AAAS)
external identifiers
  • wos:000315452000036
  • pmid:23328392
  • scopus:84874355840
  • pmid:23328392
ISSN
1095-9203
DOI
10.1126/science.1230969
language
English
LU publication?
yes
id
3fdd4516-a4d3-48ab-95a7-4594b0839b3c (old id 3438598)
date added to LUP
2016-04-01 10:22:50
date last changed
2023-11-09 18:44:24
@article{3fdd4516-a4d3-48ab-95a7-4594b0839b3c,
  abstract     = {{Photovoltaics based on nanowire arrays could reduce cost and materials consumption compared to planar devices, but have exhibited low efficiency of light absorption and carrier collection. We fabricated a variety of millimeter-sized arrays of 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 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.}},
  author       = {{Wallentin, Jesper and Anttu, Nicklas and Asoli, Damir and Huffman, Maria and Aberg, Ingvar and Magnusson, Martin and Siefer, Gerald and Fuss-Kailuweit, Peter and Dimroth, Frank and Witzigmann, Bernd and Xu, Hongqi and Samuelson, Lars and Deppert, Knut and Borgström, Magnus}},
  issn         = {{1095-9203}},
  language     = {{eng}},
  number       = {{6123}},
  pages        = {{1057--1060}},
  publisher    = {{American Association for the Advancement of Science (AAAS)}},
  series       = {{Science}},
  title        = {{InP Nanowire Array Solar Cells Achieving 13.8% Efficiency by Exceeding the Ray Optics Limit.}},
  url          = {{http://dx.doi.org/10.1126/science.1230969}},
  doi          = {{10.1126/science.1230969}},
  volume       = {{339}},
  year         = {{2013}},
}