Dual Raman Features of Double Coaxial Carbon Nanotubes with N-Doped and B-Doped Multiwalls

作者：Quan‐Hong Yang, Peng‐Xiang Hou, Masashi Unno, Seigo Yamauchi, Riichiro Saito, Takashi Kyotani · 发表于：Nano Letters · 年份：2005 · DOI：10.1021/nl051779j · 被引用次数：261 · 研究领域：Carbon Nanotubes in Composites、Graphene research and applications、Fullerene Chemistry and Applications

Double coaxial carbon nanotubes with nitrogen (N)-doped and boron (B)-doped multiwalls possess composite Raman characteristics, originating not only from the outer N-doped but also from inner B-doped layers. Both N and B dopings result in substantial shifts of the characteristic D band and G band of sp(2) carbon constituting nanotube walls but in different ways. The downshift of the G band is correlated with the decreases of electrical resistivity of carbon nanotubes regardless of N or B doping.