Non-Volatile Photochemical Gating of an Epitaxial Graphene/Polymer Heterostructure
Journal article published in 2011 by
Samuel Lara-Avila,
Kasper Moth-Poulsen 
,
Rositza Yakimova,
Thomas Bjornholm,
Vladimir Fal'ko,
Alexander Tzalenchuk,
Sergey Kubatkin
,
Rositza Yakimova,
Thomas Bjornholm,
Vladimir Fal'ko,
Alexander Tzalenchuk,
Sergey Kubatkin
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Abstract
A novel heterostructure based on epitaxial graphene grown on silicon carbide combined with two polymers is demonstrated, with a neutral spacer and a photoactive layer that provides potent electron acceptors under UV light exposure. UV exposure of this heterostructure enables control of the electrical parameters of graphene in a non-invasive, non-volatile, and reversible way.