Monolithic III-V Nanowire Solar Cells on Graphene via Direct van der Waals Epitaxy

Monolithic III-V Nanowire Solar Cells on Graphene via Direct van der Waals Epitaxy

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 In0...

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Veröffentlicht in:Advanced materials (Weinheim) 2014-06, Vol.26 (22), p.3755-3760
Hauptverfasser: Mohseni, Parsian K., Behnam, Ashkan, Wood, Joshua D., Zhao, Xiang, Yu, Ki Jun, Wang, Ning C., Rockett, Angus, Rogers, John A., Lyding, Joseph W., Pop, Eric, Li, Xiuling
Format: Artikel
Sprache:eng
Schlagworte:
Arrays
Assembly
Conversion
Epitaxial growth
Graphene
InGaAs
MATERIALS SCIENCE
MOCVD
Nanostructure
Nanowires
Photovoltaic cells
photovoltaics
Solar cells
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Beschreibung
Zusammenfassung: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 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.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201305909