Work Function Engineering of Graphene

Work Function Engineering of Graphene

Graphene is a two dimensional one atom thick allotrope of carbon that displays unusual crystal structure, electronic characteristics, charge transport behavior, optical clarity, physical & mechanical properties, thermal conductivity and much more that is yet to be discovered. Consequently, it has generated unprecedented excitement in the scientific community; and is of great interest to wid...

Work function engineering of single layer graphene by irradiation-induced defects

Tuning the graphene work function by electric field effect.

We report variation of the work function for single and bilayer graphene devices measured by scanning Kelvin probe microscopy (SKPM). By use of the electric field effect, the work function of graphene can be adjusted as the gate voltage tunes the Fermi level across the charge neutrality point. Upon biasing the device, the surface potential map obtained by SKPM provides a reliable way to measure...

Determination of graphene work function and graphene-insulator- semiconductor band alignment by internal photoemission spectroscopy

semiconductor band alignment by internal photoemission spectroscopy Rusen Yan, Qin Zhang, Wei Li, Irene Calizo, Tian Shen, Curt A. Richter, Angela R. Hight-Walker, Xuelei Liang, Alan Seabaugh, Debdeep Jena, Huili Grace Xing, David J. Gundlach, and N. V. Nguyen Semiconductor and Dimensional Metrology Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA Depa...

Plasma engineering of graphene

Recently, there have been enormous efforts to tailor the properties of graphene. These improved properties extend the prospect of graphene for a broad range of applications. Plasmas find applications in various fields including materials science and have been emerging in the field of nanotechnology. This review focuses on different plasma functionalization processes of graphene and its oxide co...