二茂铁填充的双壁碳纳米管的合成与红外光谱表征

通过气相法将二茂铁填充到双壁碳纳米管的纳米空腔内部, 制备了一种新型纳米杂化材料——二茂铁-双壁碳纳米管. 对这种纳米材料进行了高分辨透射电子显微镜结构分析与傅立叶变换红外光谱表征. 红外光谱研究结果表明, 碳纳米管管壁与内部二茂铁之间存在强的电子相互作用,并伴有电子转移.     

氮掺杂的三层碳纳米管的制备

利用气相扩散法将酞菁铁分子填充入双层碳纳米管的内部空腔中,通过高温加热使酞菁铁裂解,制备了氮掺杂的三层碳纳米管。高分辨透射电子显微镜观测表明,由酞菁铁生成的内层管的缺陷较多,管壁不平直,并且有竹节状结构,这可能是由于氮原子引起的。在电子束照射下,内层管的稳定性较差。通过与酞菁铁在宏观基底上的裂解作比较,探讨了三层碳纳米管的生成机理。     

Fabrication of transparent double-walled carbon nanotubes flexible matrix touch panel by laser ablation technique

This study reports on the fabrication of transparent double-walled carbon nanotubes (DWNTs) flexible matrix touch panel using the method of laser ablation. We employed an Nd:YAG laser (1064 nm) to pattern transparent DWNT thin film pre-coated on a PET substrate and successfully fabricated a flexible matrix touch panel. By increasing the laser energy, the ablation depth of transparent DWNT flexible thin film is increased but the sheet resistance (Ω/sq) is decreased. When the laser energy intensity reaches 117 mJ/cm², the DWNTs can be completely ablated from transparent DWNT flexible thin film. This method is rapid, simple, applicable to large-area processing and thus is potential for mass production.