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C_(60)以其独特的分子结构、物理化学性质以及许多方面的巨大潜在应用前景,引起了各国科学家的强烈兴趣.C_(60)宏观量制法的发现,极大地推动了人们对其独特物理化学性质的研究.其中C_(60)在室温或低温下在近红外区有微弱的荧光发射,这在文献中已有许多报道,然而这些报道却不尽相同.例如:早期的研究均未观察到C_(60)溶液的室温荧光光谱;Wang认为C_(60)荧光的量子产率随采用的不同的激发波长而变,而后来的工作则认为其量子产率与激发波长无关;另外C_(60)的荧光寿命短到0.033ns长到1.45ns均有报道.纯C_(60)衍生物的荧光
Due to its unique molecular structure, physicochemical properties and many potential applications, C_ (60) has drawn great interest from scientists all over the world. The discovery of C_ (60) macroscopic measurement has greatly promoted people’s uniqueness Physico-chemical properties of C_ (60), in which C_ (60) has weak fluorescence emission in the near infrared region at room temperature or low temperature, which has been reported in the literature, however, these reports are not the same.For example, none of the earlier studies The fluorescence spectra of C_ (60) solution were observed at room temperature. Wang believed that the quantum yield of C_ (60) fluorescence changed with the different excitation wavelength, while the subsequent work assumed that the quantum yield was independent of the excitation wavelength. (60) fluorescence lifetime as short as 0.033 ns to 1.45 ns are reported fluorescence of pure C_ (60) derivatives