Thermal reduction and fractal analysis of liquid phase exfoliated graphene

IF 1.5 3区物理与天体物理 Q3 INSTRUMENTS & INSTRUMENTATION

Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment Pub Date : 2025-03-05 DOI:10.1016/j.nima.2025.170407

Nersik Margaryan , Eduard Aleksanyan , Vardan Harutyunyan , Astghik Hovhannisyan , Narek Margaryan

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Abstract

This paper presents an efficient, low-temperature method for synthesizing graphene through liquid-phase exfoliation. Detailed Raman spectroscopy was employed to evaluate structural characteristics and the impact of thermal treatment on defect modes and impurities. Atomic force microscopy (AFM) was used to analyze the surface topology, revealing a fractal nature with an average roughness of ∼0.33 nm. Fractal dimensions were determined via computational analysis, enabling the calculation of the surface potential. The calculated surface potential (370 meV) closely matched experimental values obtained using the Kelvin probe method (400 meV), with only an 8% deviation. These findings demonstrate the effectiveness of fractal analysis in characterizing graphene's surface and electronic properties.

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来源期刊

Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment 物理-光谱学

CiteScore

3.20

自引率

21.40%

发文量

787

审稿时长

1 months

期刊介绍： Section A of Nuclear Instruments and Methods in Physics Research publishes papers on design, manufacturing and performance of scientific instruments with an emphasis on large scale facilities. This includes the development of particle accelerators, ion sources, beam transport systems and target arrangements as well as the use of secondary phenomena such as synchrotron radiation and free electron lasers. It also includes all types of instrumentation for the detection and spectrometry of radiations from high energy processes and nuclear decays, as well as instrumentation for experiments at nuclear reactors. Specialized electronics for nuclear and other types of spectrometry as well as computerization of measurements and control systems in this area also find their place in the A section. Theoretical as well as experimental papers are accepted.