Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Engineering Enhanced Thermoelectric Properties in Zigzag Graphene
  Nanoribbons   We theoretically investigate the thermoelectric properties of zigzag graphene
nanoribbons in the presence of extended line defects, substrate impurities and
edge roughness along the nanoribbon's length. A nearest-neighbor tight-binding
model for the electronic structure and a fourth nearest- neighbor force
constant model for the phonon bandstructure are used. For transport we employ
quantum mechanical non-equilibrium Green's function simulations. Starting from
the pristine zigzag nanoribbon structure that exhibits very poor thermoelectric
performance, we demonstrate how after a series of engineering design steps the
performance can be largely enhanced. Our results could be useful in the design
of highly efficient nanostructured graphene nanoribbon based thermoelectric
devices.

18
The categories of this paper are: econ
6
The categories of this paper are: astro-ph
3
The categories of this paper are: physics
13
The categories of this paper are: quant-ph
24
The categories of this paper are: dg-ga
35
The categories of this paper are: mtrl-th
30
The categories of this paper are: q-alg
5
The categories of this paper are: gr-qc
19
The categories of this paper are: eess
11
The categories of this paper are: hep-lat
27
The categories of this paper are: comp-gas
17
The categories of this paper are: q-fin
12
The categories of this paper are: nucl-th
37
The categories of this paper are: supr-con
20
The categories of this paper are: acc-phys
31
The categories of this paper are: ao-sci