(Color online) Schematic diagram of the cylindrical microplasma cavities.
SEM images of (a) MCDpristine and (b) Fe/pa-processed (900 °C, 5 min in H2) MCD films.
(Color online) (a) EFE properties and (b) Raman spectra of (I) MCDpristine and (II) as-Fe-coated and (III) Fe/pa-processed (900 °C, 5 min in H2) MCD films.
(Color online) EFE properties of post-treated diamond films: (I) MCDpristine, (II) Fe/pa-MCD, (III) Fe/pa-MCD1, (IV) Fe/pa-MCD2, (V) Fe/pa-MCD3.
(Color online) Plasma illumination properties of MCD films (a)Fe/pa-MCD0, (b) Fe/pa-MCD1, (c) Fe/pa-MCD2, (d) Fe/pa-MCD3.
(Color online) (a) TEM bright field and (b) and (c) structure images of the regions near the center of the diamond grains (region A in “a”) and (d) and (e) that of the regions in the periphery of the diamond grains (region B in “a”), showing the presence of planar defects inside the diamond grains and the existence of Fe-, Fe3C, and nanographitic (or amorphous carbon) clusters in the surrounding regions.
(Color online) (a) HAADF images and (b) EDAX (STEM) profiles of the MCD films, which were Fe/pa in H2-atmosphere at 900 °C for 5 min. Spectra I, II, and III correspond to the locations A, B, and C designated in “a.”
(Color online) TEM 3D-tomographic projections of the Fe/pa MCD films: (a) Fe3C-clusters (white color), (b) Fe-clusters (red color), and (c) the superposition of the Fe3C- and Fe-3D-tomographs.
(Color online) X–Y projection of the TEM 3D-tomographs of the Fe/pa MCD films, (a) Fe3C-clusters (white color), (b) Fe-clusters (red color), and (c) the superposition of the Fe3C- and Fe-projections.
EFE properties of the pristine, as Fe-coated and Fe-coated/postannealed MCD films.
Surface EFE and plasma illumination properties of the two-step post-treated MCD films.
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