title: Unforeseen high temperature and humidity stability of FeCl3 intercalated few layer graphene.
abstract: We present the first systematic study of the stability of the structure and electrical properties of FeCl3 intercalated few-layer graphene to high levels of humidity and high temperature. Complementary experimental techniques such as electrical transport, high resolution transmission electron microscopy and Raman spectroscopy conclusively demonstrate the unforseen stability of this transparent conductor to a relative humidity up to 100% at room temperature for 25 days, to a temperature up to 150°C in atmosphere and to a temperature as high as 620°C in vacuum, that is more than twice higher than the temperature at which the intercalation is conducted. The stability of FeCl3 intercalated few-layer graphene together with its unique values of low square resistance and high optical transparency, makes this material an attractive transparent conductor in future flexible electronic applications.
authors.affiliation: Centre for Graphene Science, College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter EX4 4QF, UK.
authors.forename: Dominique Joseph
authors.initials: DJ
authors.lastname: Wehenkel
authors.affiliation: Centre for Graphene Science, College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter EX4 4QF, UK.
authors.forename: Thomas Hardisty
authors.initials: TH
authors.lastname: Bointon
authors.affiliation: Center for Nanostructured Graphene (CNG), Department of Micro- and Nanotechnology Engineering, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark.
authors.forename: Tim
authors.initials: T
authors.lastname: Booth
authors.affiliation: Center for Nanostructured Graphene (CNG), Department of Micro- and Nanotechnology Engineering, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark.
authors.forename: Peter
authors.initials: P
authors.lastname: Bøggild
authors.affiliation: Centre for Graphene Science, College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter EX4 4QF, UK.
authors.forename: Monica Felicia
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, UK.
authors.forename: Saverio
authors.initials: S
authors.lastname: Russo