Structural influence on Raman scattering of a new C60 thin film prepared by AAO template with the method of pressure difference.
An anodic aluminum oxide (AAO) template is prepared by anodizing aluminum in oxalic acid solution. C60 crystals were grown, using the pressure difference method, in the pores of the template, representing a brushlike thin film layer with a honeycomb boundary structure in one side and nail arrays in the other side. Different Raman spectra of the C60 thin film from the both sides are presented, which indicate the different uniformly ordered structure character and the interface behavior of the C60 film on the surface with C60 crystals in the AAO nanopores. On the basis of energy and group theory, the strengthening of the Raman intensity and the broadening of Raman modes may imply that more transition spectral lines between vibration or rotation energy levels of C60 molecules were excited and detected.
Zhixun
Luo
L
Beijing Key Lab for Nano-photonics and Nano-structure, Department of Physics, Capital Normal University, Beijing 100037, P. R. China.
Yan
Fang
F
D000535:Aluminum / Q000737:chemistry; D000537:Aluminum Oxide / Q000737:chemistry*; D037741:Fullerenes / Q000737:chemistry*; D018625:Microscopy, Atomic Force; D019815:Oxalic Acid / Q000737:chemistry; D011312:Pressure; D013059:Spectrum Analysis, Raman
D037741:Fullerenes; D019815:Oxalic Acid; D000535:Aluminum; D000537:Aluminum Oxide; C069837:fullerene C60