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  • Espinet-Gonzalez, PilarCalifornia Institute of Technology (author)

Radiation Tolerant Nanowire Array Solar Cells

  • Article/chapterEnglish2019

Publisher, publication year, extent ...

  • 2019-10-18
  • American Chemical Society (ACS),2019
  • 10 s.

Numbers

  • LIBRIS-ID:oai:lup.lub.lu.se:ae9ca057-6bc7-4846-8f4a-ade4b8a8906c
  • https://lup.lub.lu.se/record/ae9ca057-6bc7-4846-8f4a-ade4b8a8906cURI
  • https://doi.org/10.1021/acsnano.9b05213DOI

Supplementary language notes

  • Language:English
  • Summary in:English

Part of subdatabase

Classification

  • Subject category:art swepub-publicationtype
  • Subject category:ref swepub-contenttype

Notes

  • Space power systems require photovoltaics that are lightweight, efficient, reliable, and capable of operating for years or decades in space environment. Current solar panels use planar multijunction, III-V based solar cells with very high efficiency, but their specific power (power to weight ratio) is limited by the added mass of radiation shielding (e.g., coverglass) required to protect the cells from the high-energy particle radiation that occurs in space. Here, we demonstrate that III-V nanowire-array solar cells have dramatically superior radiation performance relative to planar solar cell designs and show this for multiple cell geometries and materials, including GaAs and InP. Nanowire cells exhibit damage thresholds ranging from ∼10-40 times higher than planar control solar cells when subjected to irradiation by 100-350 keV protons and 1 MeV electrons. Using Monte Carlo simulations, we show that this improvement is due in part to a reduction in the displacement density within the wires arising from their nanoscale dimensions. Radiation tolerance, combined with the efficient optical absorption and the improving performance of nanowire photovoltaics, indicates that nanowire arrays could provide a pathway to realize high-specific-power, substrate-free, III-V space solar cells with substantially reduced shielding requirements. More broadly, the exceptional reduction in radiation damage suggests that nanowire architectures may be useful in improving the radiation tolerance of other electronic and optoelectronic devices.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Barrigón, EnriqueLund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Fasta tillståndets fysik,Fysiska institutionen,Institutioner vid LTH,Other operations, LTH,Faculty of Engineering, LTH,Solid State Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)ftf-eqb (author)
  • Otnes, GauteLund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Fasta tillståndets fysik,Fysiska institutionen,Institutioner vid LTH,Other operations, LTH,Faculty of Engineering, LTH,Solid State Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)ftf-goe (author)
  • Vescovi, GiulianoSol Voltaics AB (author)
  • Mann, ColinAerospace Corporation, USA (author)
  • France, Ryan M.National Renewable Energy Laboratory (author)
  • Welch, Alex J.California Institute of Technology (author)
  • Hunt, Matthew S.California Institute of Technology (author)
  • Walker, DonAerospace Corporation, USA (author)
  • Kelzenberg, Michael D.California Institute of Technology (author)
  • Åberg, IngvarSol Voltaics AB (author)
  • Borgström, Magnus T.Lund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Fasta tillståndets fysik,Fysiska institutionen,Institutioner vid LTH,Other operations, LTH,Faculty of Engineering, LTH,Solid State Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)ftf-mbo (author)
  • Samuelson, LarsLund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Fasta tillståndets fysik,Fysiska institutionen,Institutioner vid LTH,Other operations, LTH,Faculty of Engineering, LTH,Solid State Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,Sol Voltaics AB(Swepub:lu)ftf-lsa (author)
  • Atwater, Harry A.California Institute of Technology (author)
  • California Institute of TechnologyNanoLund: Centre for Nanoscience (creator_code:org_t)

Related titles

  • In:ACS Nano: American Chemical Society (ACS)13:11, s. 12860-128691936-08511936-086X

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