Cross-linked nano-onions of carbon nitride in the solid phase: Existence of a novel C48N12 aza-fullerene
2001 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 87, no 22, art. no.-225503 p.Article in journal (Refereed) Published
We report a new fullerenelike material consisting of cross-linked nano-onions of C and N. Growth of the onion shells takes place atom by atom on a substrate surface and yields thin solid films during magnetron sputter deposition. Electron microscopy and energy loss spectroscopy show that the core shell contains up to 20 at. % N corresponding to C48N12 aza-fullerene composition. Nanoindentation of this nanostructured material gives high resilience with hardness 7 GPa, Young's modulus 37 GPa, and complete elastic recovery after loading with 0.5 mN to a depth of 75 nm. Total energy calculations show the stability Of C60-2nN2n aza-fullerenes and suggest the existence of a novel C48N12 molecule.
Place, publisher, year, edition, pages
2001. Vol. 87, no 22, art. no.-225503 p.
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-49052OAI: oai:DiVA.org:liu-49052DiVA: diva2:269948