Amorphous Graphene: A Constituent Part of Low Density Amorphous Carbon
Document Type
Article
Publication Date
8-7-2018
Department
Physics and Astronomy
School
Mathematics and Natural Sciences
Abstract
In this paper, we provide evidence that low density nano-porous amorphous carbon (a-C) consists of interconnected regions of amorphous graphene (a-G). We include experimental information in producing models, while retaining the power and accuracy of ab initio methods with no biasing assumptions. Our models are highly disordered with predominant sp2 bonding and ring connectivity mainly of sizes 5–8. The structural, dynamical and electronic signatures of our 3-D amorphous graphene are similar to those of monolayer amorphous graphene. We predict an extended x-ray absorption fine structure (EXAFS) signature of amorphous graphene. Electronic density of states calculations for 3-D amorphous graphene reveal similarity to monolayer amorphous graphene and the system is non conducting.
Publication Title
Physical Chemistry Chemical Physics
Volume
20
Issue
29
First Page
19546
Last Page
19551
Recommended Citation
Bhattarai, B.,
Biswas, P.,
Atta-Fynn, R.,
Drabold, D. A.
(2018). Amorphous Graphene: A Constituent Part of Low Density Amorphous Carbon. Physical Chemistry Chemical Physics, 20(29), 19546-19551.
Available at: https://aquila.usm.edu/fac_pubs/15779