C_(60)溶液、孤立分子及薄膜形态电子态结构分析

SPECTROSCOPIC ANALYSIS OF ELECTRONIC STRUCTURES OF C 60 SOLUTIONS AND FILMS

系统地给出了Ｃ６０在固态薄膜及不同有机溶液形态下的常规吸收光谱和三阶微商吸收光谱，确定了各相关光学跃迁能量，并通过对可见区电子—振动光谱结构的指认分析，给出了有机溶液形态下Ｃ６０的能隙；基于Ｍａｘｗｅｌ＿Ｇａｒｎｅｔ有效介质模型理论，由不同有机溶剂形态下Ｃ６０电子态能级结构参数外推获得了Ｃ６０孤立分子的本征电子态能级结构参数，从而为详细了解和研究Ｃ６０分子不同形态下电子态结构的变化提供了较完整的实验数据．

Normal and third_order derivative absorption spectra of different solutions and films of C 60 are reported. Transition energies and HOMO_LUMO gaps of C 60 molecules dissolved in different organic solvents are determined. Based on these parameters and the model of Maxwell_Garnett effective medium, the corresponding energy parameters of the electronic structure of isolated molecules of C 60 are given in a linear approximation.