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Title: Atomistic Interrogation of B–N Co-dopant Structures and Their Electronic Effects in Graphene

Authors:
; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1354273
Report Number(s):
BNL-112789-2016-JA
Journal ID: ISSN 1936-0851
DOE Contract Number:
SC00112704
Resource Type:
Journal Article
Resource Relation:
Journal Name: ACS Nano; Journal Volume: 10; Journal Issue: 7
Country of Publication:
United States
Language:
English

Citation Formats

Schiros, Theanne, Nordlund, Dennis, Palova, Lucia, Zhao, Liuyan, Levendorf, Mark, Jaye, Cherno, Reichman, David, Park, Jiwoong, Hybertsen, Mark, and Pasupathy, Abhay. Atomistic Interrogation of B–N Co-dopant Structures and Their Electronic Effects in Graphene. United States: N. p., 2016. Web. doi:10.1021/acsnano.6b01318.
Schiros, Theanne, Nordlund, Dennis, Palova, Lucia, Zhao, Liuyan, Levendorf, Mark, Jaye, Cherno, Reichman, David, Park, Jiwoong, Hybertsen, Mark, & Pasupathy, Abhay. Atomistic Interrogation of B–N Co-dopant Structures and Their Electronic Effects in Graphene. United States. doi:10.1021/acsnano.6b01318.
Schiros, Theanne, Nordlund, Dennis, Palova, Lucia, Zhao, Liuyan, Levendorf, Mark, Jaye, Cherno, Reichman, David, Park, Jiwoong, Hybertsen, Mark, and Pasupathy, Abhay. Tue . "Atomistic Interrogation of B–N Co-dopant Structures and Their Electronic Effects in Graphene". United States. doi:10.1021/acsnano.6b01318.
@article{osti_1354273,
title = {Atomistic Interrogation of B–N Co-dopant Structures and Their Electronic Effects in Graphene},
author = {Schiros, Theanne and Nordlund, Dennis and Palova, Lucia and Zhao, Liuyan and Levendorf, Mark and Jaye, Cherno and Reichman, David and Park, Jiwoong and Hybertsen, Mark and Pasupathy, Abhay},
abstractNote = {},
doi = {10.1021/acsnano.6b01318},
journal = {ACS Nano},
number = 7,
volume = 10,
place = {United States},
year = {Tue Jul 26 00:00:00 EDT 2016},
month = {Tue Jul 26 00:00:00 EDT 2016}
}
  • Chemical doping has been demonstrated to be an effective method for producing high-quality, large-area graphene with controlled carrier concentrations and an atomically tailored work function. Furthermore, the emergent optoelectronic properties and surface reactivity of carbon nanostructures are dictated by the microstructure of atomic dopants. Co-doping of graphene with boron and nitrogen offers the possibility to further tune the electronic properties of graphene at the atomic level, potentially creating p- and n-type domains in a single carbon sheet, opening a gap between valence and conduction bands in the 2-D semimetal. When using a suite of high-resolution synchrotron-based X-ray techniques, scanning tunnelingmore » microscopy, and density functional theory based computation we visualize and characterize B–N dopant bond structures and their electronic effects at the atomic level in single-layer graphene grown on a copper substrate. We find there is a thermodynamic driving force for B and N atoms to cluster into BNC structures in graphene, rather than randomly distribute into isolated B and N graphitic dopants, although under the present growth conditions, kinetics limit segregation of large B–N domains. We also observe that the doping effect of these BNC structures, which open a small band gap in graphene, follows the B:N ratio (B > N, p-type; B < N, n-type; B=N, neutral). We attribute this to the comparable electron-withdrawing and -donating effects, respectively, of individual graphitic B and N dopants, although local electrostatics also play a role in the work function change.« less