Figure 5
From: A Fully-Sealed Carbon-Nanotube Cold-Cathode Terahertz Gyrotron
Cross-sectional SEM and TEM micrographs of the CNT cold-cathode showing the overview of the interfacial structure, where (a) SEM image and (b) high magnitude image of an initially-grown CNT directly connects with the substrate, (c) TEM image and (d) HRTEM image of one CNT grows from the stainless steel.
