Amorphization of C60 nanotubes under pressure

Abstract

C 60 nanotubes with diameters of smaller than 500 nm are fabricated by a modified liquid-liquid interfacial precipitation method. In situ angle dispersive synchrotron x ray diffraction and Raman scattering under pressures have been employed to study the structure evolution of the C 60 nanotubes. The experimental results indicate that there is a pressure induced irreversible amorphization at 40.1 GPa. An isostructural phase transition occurs in the pressure range of 9.29-12.2 GPa, which is probably relative to the changes in the bonding type of C 60 nanotubes.

Pressure-induced phase transitions in single-crystalline Cu 4 Bi 4 S 9 nanoribbons

“…[7,8] Recently, the investigation on the high pressure phases of materials has been further extended to nanomaterials. [9][10][11] In this work, we investigate the structural stability of Cu 4 Bi 4 S 9 nanoribbons under pressure through in situ high pressure angle dispersive synchrotron Xray diffraction (AD-XRD) experiments and Raman scattering measurements, and study the electrical transport property of a single Cu 4 Bi 4 S 9 nanoribbon.…”