Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
(a) Schematic diagram of the final atomic configuration of Ga, Ge or As atom-doped graphene, the bonding lengths of Ga-C, Ge-C and As-C are 1.88 Å, 1.89 Å and 1.91 Å, respectively. (b) The impacted C atom with 21.4 eV kinetic energy can escape from the graphene layer, while the impacted C atom with 21.3 eV kinetic energy could return into a graphene lattice; therefore, the displacement threshold energy of pristine graphene is 21.4 eV.
