Abstract

Irradiation effect in C60 films induced by 170 keV B ion was investigated by means of Fourier transform infrared (FTIR) and Raman spectroscopies. The damage cross section σ and the effective damage radius R are deduced from the experimental data of all four IR active modes and evident four Raman active modes of C60 molecule. The differences on irradiation sensitivity and structural stability of the different active modes of C60 molecule are compared. The results indicate that T1u (4) of infrared active mode and Ag (1) of Raman active mode are most sensitive for B ion irradiation. On the other hand T1u (2) of infrared active mode and Hg (3) of Raman active mode are comparatively stable under B ion irradiation.

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