Abstract
Strong and stable blue photoluminescence (PL) from annealed C clusters embedded in SiO 2 (deposited by r.f.-sputtering) was recorded, under excitation power on a scale of μW cm −2. UV PL was also recorded from about half of the annealed samples, but this was not stable — the intensity decayed with time. Carbon and oxygen K-edge XAFS (X-ray absorption fine structure) suggest that (1) the nanoclusters present are C-based materials, (2) the luminescent materials probably involve π bonded carbon. The size distributions of the nanoclusters obtained by TEM suggest that a quantum-confined size effect can also apply to the blue PL.
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.
