Al-C_(60) 界面相互作用的 Raman 光谱研究

Raman Spectra Investigation on Al C 60 Interfacial Interactions

用真空气相沉积的方法在ＮａＣｌ（００１）基片上制备了ＡｌＣ６０共蒸膜。由于界面上Ａｌ和Ｃ６０间的相互作用，ＡｌＣ６０混蒸膜的Ｒａｍａｎ谱相对纯Ｃ６０薄膜有显著的改变。Ａｇ（２）模的软化可归因于界面上Ａｌ和Ｃ６０之间的电荷转移。但是，要解释上述Ｒａｍａｎ谱中所有的特征，尚须建立一个更复杂的Ｃ６０Ａｌ界面相互作用模型。

In comparison with pure C 60 films,many features of Raman spectra of Al C 60 co evaporated films,which were deposited on NaCl(001) substrates by vacuum sublimation method,were modified substantially due to Al C 60 interfacial interactions. The softening of A g(2) mode can be attributed to the charge transfer between Al atoms and C 60 cages at the interface. To account for all the features of the Raman spectra,a more complicated Al C 60 interfacial interaction model should be introduced.