Author/Authors :
Lee، نويسنده , , Sungjun and Kim، نويسنده , , Hajin and Lee، نويسنده , , Jhinhwan and Kuk، نويسنده , , Young and Chung، نويسنده , , Kwang Hwa and Kim، نويسنده , , Howon and Kahng، نويسنده , , Se-Jong، نويسنده ,
Abstract :
Donor and acceptor-like electronic states were observed near the conduction and valence band, respectively, in a semiconducting single-wall carbon nanotube using scanning tunneling microscopy and spectroscopy. They are observed to be, spatially, at the same location and spread within a few nm. Their physical origin is suggested as locally formed excessive and deficient number of electrons per a closed carbon network.