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What is Nitrogen Doped Graphene?

Nitrogen Doped Graphene is a new material that has been recently discovered in the laboratory. This material is highly defect-free and has a disordered structure. It is currently being studied for applications in energy storage devices and sensors.


Nitrogen doping can lead to defects in graphene. This is evident from the splitting in the XPS signal of bilayer graphene with increasing nitrogen concentration. However, the level of defects is not reported in the literature for graphene monolayers. We expect these defects to contribute to a substantial reconstruction.

Nitrogen doping is a technique used to improve graphene’s electrochemical properties. The added nitrogen increases the electrical conductivity and increases electro-catalytic activity. These properties make the material suitable for use as electrochemical sensors and energy devices.

In order to understand how nitrogen incorporates onto graphene, we examined the chemical state changes of nitrogen during synthesis. Results showed three major peaks: C1s, C2s, and C3s bands. The C1s band was the strongest and corresponded to the graphene structure.

The two-phonon double resonant process generates the two-phonon peak, which varies with the electron/hole scattering rate. However, nitrogen doping creates defects and introduces electron doping, which reduces the intensity of the 2D peak. However, this nipple effect is important in many applications and may be the key to future breakthroughs in nanotechnology.

Graphene with defect-free and disordered structure

Researchers in Poland and the United States have made progress in figuring out the best ways to synthesize the material. Graphene, in particular, has minimal conductivity. Studies by researchers have focused on the possibility that defect-free graphene is a useful material for electronics and other applications. The first step is to focus a beam of electrons at a specific temperature. This temperature will produce nonuniform BCD.

Defect-free graphene has excellent chemical and physical properties. However, defects can degrade the performance of graphene for a variety of applications. In addition, pristine graphene is not useful for spintronics or nanoelectronics. However, the presence of intrinsic defects can help tailor electronic and magnetic properties.

Graphene with higher conductivity

Graphene doped with nitrogen (N) shows increased electrical conductivity and has a lower band gap compared to graphene that is not doped. The presence of an N atom and a larger quasiparticle weight also contributes to the increase in the number of allowed states, thereby increasing the electrical conductivity of graphene.

Oxygen-containing groups reduce the crystallization degree of GO and result in the occurrence of singlet oxygen (1O2). The graphene oxidizes to form pyridine N-oxide and pyridone structures, which exhibit the p-doping effect. The sheet resistance of a three-layer stacked graphene-N film is about 100 O/#.

Graphene doped with nitrogen shows a decrease in the 2D/G intensity ratio and a shift in the G peak. The shift occurs from 1580 cm-1 to 1604 cm-1 and is accompanied by the asymmetry in the G peak. The spectra also reveal a Lorentzian-deconvolution peak that has two narrow peaks and a high-energy displacement.

Nitrogen-doped graphene can improve the electrical conductivity and wettability of the electrode interface. It can also reduce the inner resistance of an electrode.

Nitrogen-doped graphene sheets exhibit superior cyclic performance. Nitrogen-doping of graphene also improves electron/oxygen transport.  The N-doped graphene synthesis was successful by using the microwave-assisted hydrothermal method. Raman, XRD, and XPS analyses confirmed the successful synthesis. he electrical conductivity increased as the nitrogen doping concentration increased.

Graphene with higher conductivity doped with nitrogen (N-doped graphene) exhibits good electrochemical properties and good flexibility. Furthermore, it displays high rate capability and excellent cyclic performance.

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