Structural analysis of carbon nanofiber by transmission electron microscopy and image processing

Abstract

Recently, the lattice image of well ordered carbons can be observed pretty easily by high-resolution transmission electron microscopy (HRTEM). In this study, the cross section of the new type carbon nano®ber, of which the special structure was unknown, was observed by HRTEM and the detailed structure was analyzed by image processing. Defects were observed in the ordered structure of this material, that is, the (00Á1) lattice planes show large¯uctuation in alignment of them and the (10Á0) lattice planes make several angles with the (00Á1) lattice planes. The average repeat distance d 002 was estimated by HRTEM image and image analysis.