Unforeseen high temperature and humidity stability of FeCl3 intercalated few layer graphene

Dominique Joseph Wehenkel, Thomas Hardisty Bointon, Tim Booth, Peter Bøggild, Monica Felicia Craciun, Saverio Russo

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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 degrees C in atmosphere and to a temperature as high as 620 degrees 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.
Original languageEnglish
Article number7609
JournalScientific Reports
Publication statusPublished - 2015

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