InP Nanowire Array Solar Cells Achieving 13.8% Efficiency by Exceeding the Ray Optics Limit.
(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)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/3438598
- author
- organization
- publishing date
- 2013
- 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}}, }