Raman Spectroscopy of Irradiation Effect in Three Carbon Allotropes Induced by Low Energy B Ions

Irradiation effect in three carbon allotropes C₆₀, diamond and highly oriented pyrolytic graphite (HOPG) induced by 170keV B ions, mainly including the process of the damage creation, is investigated by means of Raman spectroscopy technique. The differences on irradiation sensitivity and structural stability for C₆₀, HOPG and diamond are compared. The analysis results indicate that C₆₀ is the most sensitive for B ions irradiation, diamond is the second one and the structure of HOPG is the most stable under B ion irradiation. The damage cross sections σ of C₆₀, diamond and HOPG deduced from the Raman spectra are 7.78×10^-15, 6.38×10^-15 and 1.31×10^-15cm², respectively.