5 MeV Si ion irradiation effects on structural and morphological properties of multiwalled carbon nanotubes

IF 1.4 3区物理与天体物理 Q3 INSTRUMENTS & INSTRUMENTATION Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms Pub Date : 2024-07-31 DOI:10.1016/j.nimb.2024.165489

T.V. Sai Suresh , V. Saikiran , A.P. Pathak

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Abstract

Carbon based nanomaterials (CBNs) such as multi walled carbon nanotubes (MWCNTs), graphene etc have attracted huge interest due to their widespread applications in contemporary nanotechnology. The ion bombardment is an important method which can be used for tuning of the structural and morphological properties of the CBNs. In the present work, we have carried out ion irradiation on MWCNTs (prepared by chemical vapour deposition method) with 5 MeV Si ions at different fluences ranging from 1 × 10¹⁴ to 5 × 10¹⁶ ions/cm². The resulting structural and morphological modifications on the pristine MWCNTs have been characterized by using X-ray diffraction, Raman spectroscopy and field emission scanning electron microscopy. Results observed after successful characterization are compared with pristine sample results and we observed that the irradiation creates defects in MWCNTs and causes amorphized carbon nanomaterials depending on the fluence and energy deposited by energetic ions inside the MWCNTs.

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5 MeV Si 离子辐照对多壁碳纳米管结构和形态特性的影响

多壁碳纳米管（MWCNTs）、石墨烯等碳基纳米材料（CBNs）因其在当代纳米技术中的广泛应用而备受关注。离子轰击是一种重要的方法，可用于调整 CBN 的结构和形态特性。在本研究中，我们用 5 MeV Si 离子对 MWCNTs（通过化学气相沉积法制备）进行了离子轰击，离子通量从 1 × 1014 到 5 × 1016 离子/cm2 不等。利用 X 射线衍射、拉曼光谱和场发射扫描电子显微镜对原始 MWCNT 的结构和形态进行了表征。我们将成功表征后观察到的结果与原始样品的结果进行了比较，发现辐照会在 MWCNT 中产生缺陷，并根据高能离子在 MWCNT 中沉积的通量和能量导致碳纳米材料的非晶化。

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来源期刊

Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms 物理-核科学技术

CiteScore

2.80

自引率

7.70%

发文量

231

审稿时长

1.9 months

期刊介绍： Section B of Nuclear Instruments and Methods in Physics Research covers all aspects of the interaction of energetic beams with atoms, molecules and aggregate forms of matter. This includes ion beam analysis and ion beam modification of materials as well as basic data of importance for these studies. Topics of general interest include: atomic collisions in solids, particle channelling, all aspects of collision cascades, the modification of materials by energetic beams, ion implantation, irradiation - induced changes in materials, the physics and chemistry of beam interactions and the analysis of materials by all forms of energetic radiation. Modification by ion, laser and electron beams for the study of electronic materials, metals, ceramics, insulators, polymers and other important and new materials systems are included. Related studies, such as the application of ion beam analysis to biological, archaeological and geological samples as well as applications to solve problems in planetary science are also welcome. Energetic beams of interest include atomic and molecular ions, neutrons, positrons and muons, plasmas directed at surfaces, electron and photon beams, including laser treated surfaces and studies of solids by photon radiation from rotating anodes, synchrotrons, etc. In addition, the interaction between various forms of radiation and radiation-induced deposition processes are relevant.