Large-area functionalized CVD graphene for work function matched transparent electrodes

The efficiency of flexible photovoltaic and organic light emitting devices is heavily dependent on the availability of flexible and transparent conductors with at least a similar workfunction to that of Indium Tin Oxide. Here we present the first study of the work function of large area (up to 9 cm...

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Bibliographic Details
Published in:Scientific reports 2015-11, Vol.5 (1), p.16464-16464, Article 16464
Main Authors: Bointon, Thomas H., Jones, Gareth F., De Sanctis, Adolfo, Hill-Pearce, Ruth, Craciun, Monica F., Russo, Saverio
Format: Article
Language:English
Subjects:
140/133
639/301/1005/1007
639/925/918/1052
Conductors
Electrodes
Glass substrates
Graphene
Humanities and Social Sciences
Humidity
Indium
Microscopy
multidisciplinary
Nickel
Organic light emitting diodes
Photovoltaics
Polyethylene
Science
Tin
Tin oxide
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Summary:The efficiency of flexible photovoltaic and organic light emitting devices is heavily dependent on the availability of flexible and transparent conductors with at least a similar workfunction to that of Indium Tin Oxide. Here we present the first study of the work function of large area (up to 9 cm 2 ) FeCl 3 intercalated graphene grown by chemical vapour deposition on Nickel and demonstrate values as large as 5.1 eV. Upon intercalation, a charge density per graphene layer of 5 ⋅ 10 13  ± 5 ⋅ 10 12  cm −2 is attained, making this material an attractive platform for the study of plasmonic excitations in the infrared wavelength spectrum of interest to the telecommunication industry. Finally, we demonstrate the potential of this material for flexible electronics in a transparent circuit on a polyethylene naphthalate substrate.
ISSN:2045-2322
2045-2322
DOI:10.1038/srep16464