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镶嵌在分子筛骨架中的 4 直径的单壁碳纳米管可发出高效的、位于可见光区的光致发光 .发光谱呈较宽的线形 ,其效率约为 1%— 5 % .无论是对激发光的响应 ,还是发光强度都有很强的偏振依赖特性 .结合其吸收光谱、拉曼光谱以及电子能带结构的理论计算 ,作者讨论了 4 碳纳米管的发光机制 ,并给出了合理的解释 .
The 4-diameter single-walled carbon nanotubes embedded in the molecular sieve framework emit efficient photoluminescence in the visible region with a broad linear profile with an efficiency of about 1% to 5%. Whether for excitation light , Or the intensity of the light has a strong polarization-dependent properties.With the absorption spectra, Raman spectra and theoretical calculations of the electronic band structure, the author discusses the light-emitting mechanism of 4 carbon nanotubes and gives a reasonable explanation .