Abstract
Experimental results on Raman-scattering spectra taken at room temperature of C 60 films deposited by ionized cluster beam deposition (ICBD) technique are presented. The Raman spectra show 10 strong Raman lines, consistent with the 10 Raman-allowed (2A g+8H g) modes predicted for isolated C 60 molecule. A broad feature at high frequency, which varies with acceleration voltage (Va), is also observed and is attributed to amorphous carbon (a-C). The formation and influence of a-C in the ICBD C 60 films are discussed. We think the ICBD technique is very useful in preparing dense and homogeneous pristine C 60 films with stable properties in air.
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