Fig. 5: Testing of EDS, Raman spectrum, and XRD spectrum of processed DLC-UME.

a Images of element distribution on the surface of the processed UME tip. b Raman spectrum of UME tips before and after microplasma jet processing. c EDS and element weight percentage of the processed UME tip. d XRD of the DLC coating on the surface of the processed UME