Double-walled carbon nanotubes: synthesis, structural characterization, and application

1School of Polymer Science and Engineering, Chonnam National University, Gwangju 500-757, Korea 2Department of Materials Science and Technology, Nagaoka University of Technology, Nagaoka, Niigata 940-2188, Japan 3Faculty of Engineering, Shinshu University, Nagano 380-8553, Japan 4Department of Physics, Department of Materials Science and Engineering and Materials Research Institute, The Pennsylvania State University, University Park, PA 16802-6300, USA 5Department of Electrical Engineering and Computer Science and Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139-4307, USA