Absolute potential of the Fermi level of isolated single-walled carbon nanotubes

2020-01-14 11:04:20

level potential tube dependence Raman

责任者: Okazaki, K.;Nakato, Y.;Murakoshi, K. 单位: Japan Sci. & Technol. Corp., Osaka, Japan 来源出处: Physical Review B (Condensed Matter and Materials Physics)(Phys. Rev., B, Condens, Matter Mater. Phys. (USA)),2003/07/15,68(3):35434-1 摘要: Electrochemical potential dependence of Raman intensity of isolated single-walled carbon nanotubes (SWNT) on gold electrode in aqueous solution was investigated employing in situ resonant confocal micro Raman spectroscopy. Absolute potential of the Fermi level of individual tubes was estimated from the potential dependence. Observations suggest that the work function of the tube becomes larger in a manner inversely proportional to the diameter of SWNT. The structural dependence of a metallic tube is larger than that of a semiconducting tube 关键词: carbon nanotubes;Fermi level;Raman spectra;work function;isolated single-walled carbon nanotubes;Fermi level;electrochemical potential dependence;Raman intensity;gold electrode;resonant confocal micro Raman spectroscopy;absolute potential;work function;metallic tube;semiconducting tube;C;Au