Review Article

Raman Spectroscopy for Quantitative Analysis of Point Defects and Defect Clusters in Irradiated Graphite

Figure 4

(a) The intensity ratio of and (b) the peak width of 1580 cm−1 versus the dose in a logarithmic scale for HOPG foils irradiated with 25 keV He+ at temperatures ranging from RT to 973 K. The appearance of the TEM diffraction pattern of the foils is denoted by s (spot), hs (halo and spot), and h (halo). The solid curves are guides for eyes.