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

• Vacuum Technology Application • Previous Articles     Next Articles

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

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

CLC Number: 

  • V416.5
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