Onionlike structures and small nested fullerenes formation under electron irradiation of turbostratic BC{sub 2}N

Journal Article · Thu May 01 04:00:00 EDT 1997 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.118879· OSTI ID:496341

Stephan, O; Bando, Y; Dussarrat, C; Kurashima, K; Sasaki, T; Tamiya, T; Akaishi, M ^[1]

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1. National Institute for Research in Inorganic Materials, Namiki 1-1, Tsukuba, Ibaraki 305 (Japan)

Turbostratic BC{sub 2}N samples were exposed to intense irradiation regimes in a high resolution electron microscope equipped with a field emission gun. Electron energy loss spectroscopy (EELS) analysis was used to check the sp{sup 2}-bonding type and the composition of the starting materials. In highly crystalline areas, we observed a tendency for the basal planes to curl and form large {open_quotes}open{close_quotes} onionlike features. According to EELS quantification, no change of the composition occurs during their formation. Very occasionally, small nested fullerenes of less than 10 shells each with dimensions of the very internal shell close to that of a C{sub 60} were observed. These onions are thought to arise from the bending of a few basal planes of the planar starting material. {copyright} {ital 1997 American Institute of Physics.}

• OSTI ID: 496341
• Journal Information: Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 18 Vol. 70; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BONDING
BORON COMPOUNDS
BORON NITRIDES
CARBIDES
ELECTRON BEAMS
ELECTRON MICROSCOPY
ENERGY-LOSS SPECTROSCOPY
FULLERENES
RADIATION EFFECTS
STRUCTURAL CHEMICAL ANALYSIS