Buckling of C60 whiskers

Abstract

The authors demonstrated the mechanics of materials for crystalline whiskers composed of C 60 molecules; compressive deformation of the whiskers was observed by in situ transmission electron microscopy with simultaneous force measurement by means of an optical cantilever method, as used in atomic force microscopy. In response to compression along the long axis, the whiskers bent first elastically, then buckled. A whisker with 160 nm diameter fractured brittlely at a strain of 0.08. According to Euler's formula, Young's modulus of the whisker was estimated to be 32-54 GPa, which is 160%-650% of that of C 60 bulk crystals.

Pleated Surface Morphology of C60Fullerene Nanowhiskers Incorporated by Polyaniline inN-Methyl-2-Pyrrolidone

“…Densely packed C 60 molecules self-assemble along their growth axis by implementing a technique called liquid-liquid interfacial growth wherein two solvents with contrasting C 60 solubilities are utilized. FWs have higher Young's modulus compared to pristine C 60 crystals (3). They also exhibit order-of-magnitude enhanced photoluminescence (4) and the blue shift of photoluminescence caused by the decrease of whisker diameter (5).…”

Study on structure of heat‐treated fullerene nanowhiskers and their field electron emission characteristics

“…[1][2][3] The nanowhiskers have unique mechanical and electric properties. [3][4][5][6] Young's modulus of the nanowhiskers was estimated to be 32-54 GPa. [4] The electrical resistivity of the nanowhiskers ranged from 10 8 to 10 10 Ωcm, on the same order as the other C 60 crystals with film and plate shapes.…”

“…[3][4][5][6] Young's modulus of the nanowhiskers was estimated to be 32-54 GPa. [4] The electrical resistivity of the nanowhiskers ranged from 10 8 to 10 10 Ωcm, on the same order as the other C 60 crystals with film and plate shapes. [5] By heating the nanowhiskers at 1373K in a high vacuum, the resistivity decreased to the order of 0.1 Ωcm; the nanowhiskers were transformed into conductive nanowhiskers.…”

Raman Laser Polymerization ofC60Nanowhiskers

“…Although as-grown C 60 NWs are composed of the C 60 molecules that are weakly bonded via van der Waals forces [7], the C 60 NWs irradiated by electron beams showed the stronger thermal stability [8], the higher Young's modulus [9] than pristine van der Waals C 60 crystals. Hence, it is of great importance to study the polymerization of C 60 NWs in order to improve their mechanical and thermal properties.…”