Nanotube Research Center, National Institute of Advanced Industrial Science and Technology, Tsukuba 305-8565, Japan.
Phys Chem Chem Phys. 2010 Jul 28;12(28):8118-22. doi: 10.1039/c000102c. Epub 2010 Jun 7.
The effects of C(60) encapsulation on the radial breathing mode (RBM) frequencies of single-wall carbon nanotubes (SWCNTs) are investigated over a wide range of diameters (d(t) approximately 1.25-1.5 nm). The observed frequency shifts show a characteristic behavior depending on the inter-spacing between C(60) and SWCNTs. The present findings clearly indicate the van der Waals nature of the SWCNT-C(60) interaction and an importance of hybridization between the electronic states of C(60) and SWCNTs.
研究了在较宽直径范围内(d(t)约为 1.25-1.5nm)C(60)封装对单壁碳纳米管(SWCNT)的径向呼吸模式(RBM)频率的影响。观察到的频率位移表现出取决于 C(60)和 SWCNT 之间的间隔的特征行为。目前的发现清楚地表明了 SWCNT-C(60)相互作用的范德华性质以及 C(60)和 SWCNT 之间的电子态杂化的重要性。