Graphene

Microscale Electrostatic Fractional Capacitors using Reduced Graphene Oxide Percolated Polymer Composites

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Amro M Elshurafa, et al., "Microscale Electrostatic Fractional Capacitors using Reduced Graphene Oxide Percolated Polymer Composites" Applied Physics Letters 102, 2013, 232991. Abstract: We show that graphene-percolated polymer composites exhibit fractional capacitance response in the frequency range of 50 kHz–2 MHz. In addition, it is shown that by varying the loading of graphene within the matrix from 2.5% to 12%, the phase can be controllably tuned from −67° to −31°, respectively. The electrostatic fractional capacitors proposed herein are easy to fabricate and offer integration capability

Graphene is taking charge

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Graphene-based capacitors prove useful in advanced non-linear electronics.

Mohamed D. Farhat

Research Scientist, Waves in Complex Media
Mohamed Farhat is currently a Research Scientist at King Abdullah University of Science and technology (KAUST), Thuwal, Saudi Arabia.

Lixin Ge

Visiting Researcher, Waves in Complex Media
Visiting researcher January 2015-June 2015 Ph.D. Fudan University, China, 2014 Research Interests Topological insulators, Graphene, Mie scattering theory. Selected Publications Lixin Ge, Tianrong Zhan, Dezhuan Han*, Xiaohan Liu, and Jian Zi*, ``Unusual electromagnetic scattering by cylinders of topological insulator," Opt. Express 22, 30833 (2014). Lixin Ge, Tianrong Zhan, Dezhuan Han*, Xiaohan Liu, and Jian Zi*, ``Determination of the quantized topological magneto-electric effect in topological insulators from Rayleigh scattering," Sci. Rep. 5, 7948 (2015). Education Ph.D. Fudan

Heng Wang

Ph.D. student in Electrical and Computer Engineering at KAUST with expertise in nanofabrication, electron beam lithography, and nanodevices. Focused on graphene-based geometric diodes.