Author/Authors :
Chen، نويسنده , , Y and Chen، نويسنده , , J and Hu، نويسنده , , H and Hamon، نويسنده , , M.A and Itkis، نويسنده , , M.E and Haddon، نويسنده , , R.C، نويسنده ,
Abstract :
We report EPR studies on pristine, purified, shortened and soluble SWNTs in various solution phases. Some of these samples give rise to strong, sharp EPR signals, and this technique is useful for monitoring the presence of SWNTs in aqueous and organic solvents. The soluble SWNTs carry about 1 unpaired electron per 10000 carbon atoms and give a free electron g-value.
