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由于纳米碳管的优异机械特性及其丰富多采的光学和电学特性,它自1991年被发现以来一直受到科学家的青睐。纳米碳管研究已成为当今世界上发展最迅速,竞争最激烈的科学前沿领域之一。怎样才能把纳米碳管做得更细小,尺寸更均匀以及如何使众多的纳米碳管排列规整,一直是纳米碳管研究中的难题。我们利用多孔的沸石晶体作为载体,首次成功地研制出了尺寸均一,排列规整的超细单壁纳米碳管。这些超细纳米碳管具有独特的性能,低温下（<20K）甚至呈现出前所未有的一维超导现象。详细介绍了这些超细单壁纳米碳管的制备过程,并着重介绍其在可见光区的光吸收,光发射以及二次谐波的倍频特性。
Due to the excellent mechanical properties of carbon nanotubes and their rich optical and electrical properties, it has been favored by scientists since its discovery in 1991. Carbon nanotube research has become one of the most advanced and competitive science frontiers in the world today. How to make the carbon nanotubes smaller, more uniform in size and how to arrange a large number of carbon nanotubes has always been a problem in the research of the carbon nanotubes. We use porous zeolite crystals as a carrier, the first successful development of a uniform size, well-structured ultrafine single-walled carbon nanotubes. These ultrafine carbon nanotubes have the unique properties of even an unprecedented one-dimensional superconductivity at low temperatures (<20K). The preparation process of these ultrafine single-walled carbon nanotubes is introduced in detail, and its light absorption, light emission and frequency multiplication of the second harmonic in the visible region are emphatically introduced.