Modulating the Electronic Properties along Carbon Nanotubes via Tube-Substrate Interaction

作者： Jaqueline S Soares , Ana Paula M Barboza , Paulo T Araujo , Newton M Barbosa Neto , Denise Nakabayashi

关键词: Carbon nanotube 、 Substrate Interaction 、 Raman spectroscopy 、 Optical properties of carbon nanotubes 、 Substrate (electronics) 、 Nanotechnology 、 Carbon 、 Ab initio quantum chemistry methods 、 Chemical physics 、 Materials science 、 Mechanical properties of carbon nanotubes

摘要: We study single wall carbon nanotubes (SWNTs) deposited on quartz. Their Raman spectrum depends the tube-substrate morphology, and in some cases, it shows that same SWNT-on-quartz system exhibits a mixture of semiconductor metal behavior, depending orientation between tube substrate. also address problem using electric force microscopy ab initio calculations, both showing electronic properties along SWNT are being modulated via interaction.