Monolithic III-V nanowire solar cells on graphene via direct van der Waals epitaxy

Parsian K. Mohseni, Ashkan Behnam, Joshua D. Wood, Xiang Zhao, Ki Jun Yu, Ning C. Wang, Angus Rockett, John A. Rogers, Joseph W. Lyding, Eric Pop, Xiuling Li*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

67 Scopus citations


Novel solar cells, based on dense arrays of InGaAs nanowires, are grown directly on graphene. Here, graphene serves as the conductive back contact and growth template for van der Waals epitaxial assembly of vertical nanowires. Although far from being the optimum material, core-shell p-n junction In 0.25Ga0.75As nanowire arrays demonstrate a conversion efficiency of 2.51%, representing a new record for substrate-free, III-V nanowire-based solar cells.

Original languageEnglish (US)
Pages (from-to)3755-3760
Number of pages6
JournalAdvanced Materials
Issue number22
StatePublished - Jun 11 2014


  • InGaAs
  • graphene
  • nanowires
  • photovoltaics

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering


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