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真空 ›› 2022, Vol. 59 ›› Issue (5): 80-85.doi: 10.13385/j.cnki.vacuum.2022.05.14

• 真空应用 • 上一篇    下一篇

带电粒子辐射对碳纳米管纸电学性能的影响*

田海1,2, 冯展祖2, 王鹢1,2, 柳青2, 把得东2   

  1. 1.空间环境材料行为与评价技术国家级重点实验室,甘肃 兰州 730000;
    2.兰州空间技术物理研究所,甘肃 兰州 730000
  • 收稿日期:2021-12-20 出版日期:2022-09-25 发布日期:2022-09-28
  • 通讯作者: 王鹢,研究员,硕士生导师。
  • 作者简介:田海(1981-),男,山西大同人,硕士研究生。
  • 基金资助:
    *重点实验室基金(6142910200311)

Effect of Charged Particle Radiation on Electrical Properties of Carbon Nanotube Paper

TIAN Hai1,2, FENG Zhan-zu2, WANG Yi1,2, LIU Qing2, BA De-dong2   

  1. 1. National Key Laboratory of Materials Behavior and Evaluation Technology in Space Environment,Lanzhou 730000, China;
    2. Lanzhou Institute of Physics, Lanzhou 730000, China
  • Received:2021-12-20 Online:2022-09-25 Published:2022-09-28

摘要: 碳纳米管是一种具有特殊结构的一维量子材料,具有优异的力学、电学和化学性能,是未来电子元器件的理想候选材料,应用前景广阔。碳纳米管应用于航天器时,应充分考虑空间带电粒子辐射环境对其性能的影响。本文针对碳纳米管的空间应用需求,基于地球同步轨道带电粒子辐射环境,开展了电子、质子对碳纳米管纸微观结构及导电性能的影响研究,电子能量为200.0keV、500.0keV、1.0MeV,质子能量为500.0keV、1.0MeV。研究表明,碳纳米管纸材料电性能的退化是由于材料表面结构发生了变化,且材料中的缺陷数量在辐照作用下增加,使得载流子在材料中的迁移路径受到影响,导致其导电性能下降。

关键词: 碳纳米材料, 辐射效应, 空间环境, 退化机理, 航天材料

Abstract: Carbon nanotube is a one-dimensional quantum material with special structure. It has excellent mechanical, electrical and chemical properties. It is an ideal candidate material for electronic components in the future. When carbon nanotubes are used in spacecraft, the influence of space charged particle radiation environment on their properties should be fully considered. According to the space application requirements of carbon nanotubes and based on the radiation environment of charged particles in geosynchronous orbit, this paper studies the effects of electrons and protons on the microstructure and conductivity of carbon nanotube paper. The electron energy is 200.0kev, 500.0keV and 1000keV, and the proton energy is 500.0keV and 1.0MeV. The results show that the degradation of the electrical properties of carbon nanotube paper materials is due to the change of surface structure of the material, and the number of defects in the material increases under irradiation, which affects the migration path of carriers in the material and leads to the decline of its electrical properties.

Key words: carbon nanomaterial, radiation effect, space environment, degradation mechanism, space material

中图分类号: 

  • V416.5
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