Abstract:
Graphene Nanoribbon (GNR) circuit using chirality and width is currently an
interesting branch of nanotechnology to deal with. Different tortuous shapes of
GNRs generate different bandstructures. Using this property different GNR
transistors were analyzed and used to make basic logic gates. The research
encompasses the solution of bandstructure and density of states of Graphene. Both
Carbon Nanotube (CNT) and Graphene nanoribbon (GNR) had been analyzed to
observe their properties depending on their size and shape. The validity of the
developed model was checked by comparing the results with the reported data
available in the literature. GNRFETs were constructed using both the chirality and
width adjustment for tuning the bandstructure. It was found that the simultaneous
adjustment of chirality and width can be used to make logic circuits with better
efficiency. The bandstructure, density of states, I-V characteristics of GNR circuits
were obtained. The proposed GNR circuits perform ballistic transport and it is
junctionless which reduces the energy consumption. The device is one dimensional
which makes it possible for the circuit to reduce the size. The proposed structure can
be a useful for future nanoscale logic devices.
