TY - JOUR
T1 - Electron-beam-induced structural changes in crystalline C60 and C70
AU - Seraphin, Supapan
AU - Zhou, Dan
N1 - Funding Information:
We thank D.R. Huffman, L.D. Lamb, and F.A. Tinker of the Physics Department, University of Arizona, Tucson, Arizona, for providing the fullerene samples. We also acknowledge J. M. Cowley and S. Wang of the National Center for High-Resolution Electron Microscopy at the Arizona State University, Tempe, Arizona, for valuable discussions. S. S. thanks the Copper Research Center of the University of Arizona for partial support of this work.
PY - 1993/8
Y1 - 1993/8
N2 - High-resolution transmission electron microscopy (HRTEM), electron diffraction, and electron energy-loss spectroscopy (EELS) were used to characterize electron-beam-induced structural transformations in crystalline samples of C60 and C7o. During these transformations, the electron-diffraction patterns became progressively more diffuse, with the outer diffraction spots disappearing first, followed in succession by the disappearance of the inner spots. We interpret this course of evolution in the diffraction patterns as evidence of degradation of the crystalline structure via the destruction of individual molecules, as opposed to electron-beam-induced motion of intact fullerene molecules. EELS analyses of the data indicate that the final state of these transformations was amorphous carbon.
AB - High-resolution transmission electron microscopy (HRTEM), electron diffraction, and electron energy-loss spectroscopy (EELS) were used to characterize electron-beam-induced structural transformations in crystalline samples of C60 and C7o. During these transformations, the electron-diffraction patterns became progressively more diffuse, with the outer diffraction spots disappearing first, followed in succession by the disappearance of the inner spots. We interpret this course of evolution in the diffraction patterns as evidence of degradation of the crystalline structure via the destruction of individual molecules, as opposed to electron-beam-induced motion of intact fullerene molecules. EELS analyses of the data indicate that the final state of these transformations was amorphous carbon.
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U2 - 10.1557/JMR.1993.1895
DO - 10.1557/JMR.1993.1895
M3 - Article
AN - SCOPUS:0027642039
SN - 0884-2914
VL - 8
SP - 1895
EP - 1899
JO - Journal of Materials Research
JF - Journal of Materials Research
IS - 8
ER -