Abstract:
In the past few years, graphene and graphene-based materials have received enormous interest from
the scientific community due to their extraordinary mechanical, electronic, optical and electrochemical properties.
The success of graphene applications highly motivates the exploration of other applications such as in designing
of antennas, phase modulation, as a frequency multiplier, design of graphene-based Field Effect Transistors, its
use as an electrode in batteries and as a supercapacitor. In this paper, we present the Graphene Oxide/
Nanocrystalline cellulose (GO/NCC) composite material experimental phase modulation investigation. The
modulator produced a 0.2πc phase shift and the temporal profile obtained. The insertion loss at an ideal voltage of
2V and the extinction ratio was determined to be 15.17 dB at 25MHz and 12.22 dB respectively. The 0.2πc phase
shift demonstrated by GO/NCC implies that it can be used in phase shift keying, specifically, in Off-set quadrature
phase-shift keying modulation where a phase change of not greater than π
2
radians at a time is required.
