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arXiv 2201.02544cond-mat.mtrl-sciphysics.comp-ph
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压力诱导缺陷碳纳米管$sp^2$ - $sp^3$相变的数值模拟

Numerical Simulations of Pressure Induced $sp^2$-$sp^3$ Transitions in Defect Carbon Nanotubes

Xolani Maphisa, Robert Warmbier

摘要:

压力和空位缺陷的组合进行了研究,以找到理想的条件,将创建有意义的$sp^3$互连,而不会造成严重损害的单壁碳纳米管(SWCNT)。自然发生的缺陷不能引起互连。空位型缺陷的引入降低了SWCNT的塌陷压力。空位缺陷、高温和低压的组合诱导了$sp^3$,而不会对纳米管造成严重损伤。使用拉曼光谱分析了加压前后纳米管的结构变化。

英文摘要:

The combination of pressure and vacancy defects are investigated to find the ideal conditions that would create meaningful $sp^3$ interlinking without causing severe damage to the single-walled carbon nanotubes (SWCNTs). Naturally occurring defects fail to induce interlinking. The introduction of vacancy type defects reduces the collapse pressure of the SWCNTs. The combination of vacancy defects, high temperature and low pressure induces $sp^3$ without causing severe damage to the nanotubes. Structural changes caused before and after pressurization of the nanotubes were analyzed using Raman spectroscopy.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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