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Synthesis of Graphene Nanofluids with Controllable Flake Size Distributions

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Controlling Nitrogen Doping in Graphene with Atomic Precision: Synthesis and Characterization.

Tomotaroh Granzier-Nakajima^1,2, Kazunori Fujisawa^3,4, Vivek Anil^5,6

¹Department of Physics, Pennsylvania State University, University park, PA 16802, USA. txg210@psu.edu.

Nanomaterials (Basel, Switzerland)

|March 16, 2019

Summary

Nitrogen doping in graphene (NG) allows atomic-level study of dopants. Controlling nitrogen configurations fine-tunes NG

Keywords:

bonding configuration dopant segregation graphene nitrogen doping sublattice segregation

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Area of Science:

Materials Science
Nanotechnology
Chemistry

Background:

Doping semiconductors like silicon and carbon nanomaterials is challenging due to dopant gradients and material agglomeration.
Graphene's 2D structure uniquely facilitates atomic-level characterization of dopants using advanced techniques.
Nitrogen doping in graphene (NG) offers insights into bonding, interactions, and segregation of dopants.

Purpose of the Study:

To review the synthesis, characterization, and properties of nitrogen dopants in graphene beyond atomic concentration.
To highlight the importance of understanding and controlling nitrogen doping configurations in graphene.
To explore how controlled doping impacts graphene's electronic and chemical properties.

Main Methods:

Spectroscopic techniques for dopant analysis.
Atomic resolution imaging for structural characterization.
Review of synthesis and property modulation methods for nitrogen-doped graphene.

Main Results:

Nitrogen dopant configurations influence graphene's electronic properties (n-type, p-type, half-metallicity).
Controlled doping significantly alters nitrogen-doped graphene's catalytic and sensing capabilities.
Graphene's 2D nature enables detailed study of dopant bonding, interactions, and spatial distribution.

Conclusions:

Understanding and controlling nitrogen doping configurations is key to fine-tuning nitrogen-doped graphene's properties.
Nitrogen-doped graphene holds potential for advanced applications in catalysis and sensing.
Graphene serves as an ideal platform for fundamental studies of atomic-level dopant behavior.