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A Structural Analysis Method for Graphite Intercalation Compounds

  • Tatsuo Nakazawa (a1), Kyoichi Oshida (a1), Takashi Miyazaki (a1), Morinobu Endo (a2) and Mildred S. Dresselhaus (a3)...

Abstract

Study of the microstructure of electronic materials can be enhanced by using high resolution transmission electron microscopy (TEM) combined with the technique of digitized image analysis. We show here a practical image analysis method for the microstructures of acceptor graphite intercalation compounds (GICs) with CuCl2 and FeCl3 intercalates. The two dimensional fast Fourier transform (2D-FFT) was used for the frequency analysis of the TEM pictures. It is found that the lattice images of CuCl2-GICs consist of different frequency images corresponding to specific frequencies. The detailed features of the stage-1 structure of the FeCl3-GICs is extracted quantitatively by this method from a relatively indistinct TEM picture. The stage structure of the CuCl2- and FeCl3-GICs are further investigated by analyzing the reconstruction of the TEM images by means of the two dimensional inverse FFT (2D-IFFT).

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A Structural Analysis Method for Graphite Intercalation Compounds

  • Tatsuo Nakazawa (a1), Kyoichi Oshida (a1), Takashi Miyazaki (a1), Morinobu Endo (a2) and Mildred S. Dresselhaus (a3)...

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