Abstract
Chemical mapping imaged by electron energy-loss spectroscopy based on scanning transmission electron microscopy was conducted on a compressed graphite specimen containing different carbon allotropes (hexagonal diamond, cubic diamond, and graphite phases). This imaging process allows visualization of the complex spatial distribution of different diamond phases, and their coexistence was confirmed using dark field (DF) imaging. The chemical mapping images showed spatial distribution of local bonding state for hexagonal and cubic diamond phases in the whole specimen, while the DF images showed only a part of crystalline segments with long-range order. Thus, the chemical mapping method has an advantage for the purpose of observing locally the existence of individual carbon allotropes in the whole specimen. The size distribution of the hexagonal diamond phase is approximately 10–100nm. These findings indicate that the compressing method can potentially synthesize ~100nm large diamond phases.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
