Monolithic III-V Nanowire Solar Cells on Graphene via Direct van der Waals Epitaxy
- Univ. of Illinois at Urbana-Champaign, IL (United States); University of Illinois
- Univ. of Illinois at Urbana-Champaign, IL (United States)
Novel solar cells, based on dense arrays of InGaAs nanowires, are grown directly on graphene. Furthermore, 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 In0.25Ga0.75As nanowire arrays demonstrate a conversion efficiency of 2.51%, representing a new record for substrate-free, III-V nanowire-based solar cells.
- Research Organization:
- Univ. of Illinois at Urbana-Champaign, IL (United States)
- Sponsoring Organization:
- Office of Naval Research; USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division
- Grant/Contract Number:
- FG02-07ER46471
- OSTI ID:
- 1875677
- Journal Information:
- Advanced Materials, Journal Name: Advanced Materials Journal Issue: 22 Vol. 26; ISSN 0935-9648
- Publisher:
- WileyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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