论文标题
悬浮的半导体碳纳米管中的电子拉曼散射
Electronic Raman Scattering in Suspended Semiconducting Carbon Nanotubes
论文作者
论文摘要
单壁碳纳米管(SWNT)的电子拉曼散射(ERS)特征可以揭示有关其电子结构的大量信息,但以前被认为仅以金属(M-)出现在半导体(S-)SWNT中。我们报告了对ERS特征的实验观察,其精度为1 MeV,在悬浮的S-SWNT中,其过程是通过可用的高能量电子孔对完成的。 ERS特征可以促进有关金属和半导体的SWNT特性的进一步系统研究,并具有定义的手性。
The electronic Raman scattering (ERS) features of single-walled carbon nanotubes (SWNTs) can reveal a wealth of information about their electronic structures, but have previously been thought to appear exclusively in metallic (M-) but not in semiconducting (S-) SWNTs. We report the experimental observation of the ERS features with an accuracy of 1 meV in suspended S-SWNTs, the processes of which are accomplished via the available high-energy electron-hole pairs. The ERS features can facilitate further systematic studies on the properties of SWNT, both metallic and semiconducting, with defined chirality.