Influence of Gamma Irradiation on the Properties of Single-Walled Carbon Nanotubes Obtained by CVD Synthesis

摘要

Transparent films of single-walled carbon nanotubes (SWCNTs) were prepared by modified CVD synthesis, and their structure was investigated at the atomic level. The composition of organic impurities that formed a moss-like coating around the nanotubes was determined by gas chromatography-mass spectrometry (GC-MS) analysis. It was found that the films had clearly pronounced Van Hove singularities, which indicated a high concentration of single-walled nanotubes in them. Under gamma-irradiation, the walls of the nanotubes were covalently modified by impurities that formed a moss-like coating around them.