Title

Amorphous Graphene: A Constituent Part of Low Density Amorphous Carbon

Document Type

Article

Publication Date

8-7-2018

Department

Physics and Astronomy

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

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