Assembly structure control of single wall carbon nanotubes with liquid phase naphthalene adsorption

Naphthalene was adsorbed on single wall carbon nanotubes (SWNT) from trichloroethylene solution. The adsorbed state of naphthalene on dry SWNT samples was studied with X-ray photoelectron spectroscopy and Raman spectroscopy. Adsorption of naphthalene molecules on SWNTs in trichloroethylene provide a uniform coating of external surface of individual SWNTs. Also, a technique of the liquid phase adsorption of naphthalene succeeded to control the assembly structure of the SWNTs, leading to an explicit adsorption hysteresis in the nitrogen adsorption isotherm at 77 K.