title: Large-area functionalized CVD graphene for work function matched transparent electrodes.
abstract: 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)) FeCl3 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.
authors.affiliation: Centre for Graphene Science, College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter EX4 4QF, United Kingdom.
authors.forename: Thomas H
authors.initials: TH
authors.lastname: Bointon
authors.affiliation: Centre for Graphene Science, College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter EX4 4QF, United Kingdom.
authors.forename: Gareth F
authors.initials: GF
authors.lastname: Jones
authors.affiliation: Centre for Graphene Science, College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter EX4 4QF, United Kingdom.
authors.forename: Adolfo
authors.initials: A
authors.lastname: De Sanctis
authors.affiliation: National Physical Laboratory, Teddington TW11 0LW, United Kingdom.
authors.forename: Ruth
authors.initials: R
authors.lastname: Hill-Pearce
authors.affiliation: Centre for Graphene Science, College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter EX4 4QF, United Kingdom.
authors.forename: Monica F
authors.initials: MF
authors.lastname: Craciun
authors.affiliation: Centre for Graphene Science, College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter EX4 4QF, United Kingdom.
authors.forename: Saverio
authors.initials: S
authors.lastname: Russo