Structural Modifications of Multiwalled Carbon Nanotubes by Swift Heavy Ions Irradiation

Keya Dharamvir; rnKiran Jeet; rnChunsheng Du; rnNing Pan; rnVijay K. Jindal

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Structural Modifications of Multiwalled Carbon Nanotubes by Swift Heavy Ions Irradiation

机译：快速重离子辐照对多壁碳纳米管的结构修饰

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Thin film samples of multi-walled carbon nanotubes (MWCNTs) were irradiated with 120 MeV gold ions. Transmission electron microscopy (TEM) images of the pristine and irradiated samples were obtained. TEM pictures show that in the irradiated sample, the CNTs are in general shorter and some have their inner cores filled, unlike in the pristine sample. We also find from these images that average inner and outer tube diameters change as a result of ion irradiation. The films were also characterized using Raman spectrometry. Modifications of the disorder mode (D mode) and the tangential mode (G mode) under different irradiation fluences were studied in detail. As fluence increases, the MWCNTs first show damage, then healing under somewhat higher fluences and again amorphization under still higher fluence of ion irradiation.

机译：用120 MeV金离子辐照多壁碳纳米管（MWCNT）的薄膜样品。获得了原始和辐照样品的透射电子显微镜（TEM）图像。 TEM照片显示，与原始样品不同，在受辐照的样品中，CNT通常较短，并且其中一些内芯充满。从这些图像中我们还发现，平均内管和外管直径由于离子辐照而改变。还使用拉曼光谱对膜进行表征。详细研究了不同辐照通量下无序模式（D模式）和切向模式（G模式）的修改。随着注量的增加，MWCNT首先显示出损伤，然后在更高注量的情况下愈合，并在更高注量的离子辐射下再次非晶化。

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来源
《Journal of nano research》 |2010年第2010期|P.1-9|共9页
作者
Keya Dharamvir; rnKiran Jeet; rnChunsheng Du; rnNing Pan; rnVijay K. Jindal;
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作者单位

Department of Physics, Panjab University, Chandigarh-160014, India;

rnDepartment of Physics, Panjab University, Chandigarh-160014, India;

rnNanomaterials in the Environment, Agriculture and Technology, University of California, Davis, USA;

rnNanomaterials in the Environment, Agriculture and Technology, University of California, Davis, USA;

rnDepartment of Physics, Panjab University, Chandigarh-160014, India;

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原文格式 PDF
正文语种 eng
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关键词
carbon nanotubes; ion irradiation; raman spectroscopy; defects;

机译：碳纳米管;离子辐射拉曼光谱缺陷;

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3. Structural modification of C-doped SiO_2 induced by swift heavy ion irradiations [J] . Z.G. Wang, Z.M. Zhao, A. Benyagoub, Nuclear Instruments & Methods in Physics Research. B, Beam Interactions with Materials and Atoms . 2007,第1期

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7. Structural Modifications of Multiwalled Carbon Nanotubes by Swift Heavy Ions Irradiation [O] . Keya Dharamvir, Kiran Jeet, Chunsheng Du, 2015

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Structural Modifications of Multiwalled Carbon Nanotubes by Swift Heavy Ions Irradiation

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