Zhou Weiya

A Double-Temperature-Gradient Technique for the Growth of Pure C60 Single Crystals from the Vapor Phase

Pure C60 single crystals were grown by a sublimation-condensation method in an evacuated closed quartz tube situated in a double-temperature-gradient furnace. Large C60 single crystals, up to a size of 0.6 mm × 1.0 mm × 2.0 mm with quite smooth and shiny faces, were obtained. X-ray diffraction, electron diffraction and x-ray morphology were carried out and showed that the quality of large C60 single crystals grown by the double-temperature-gradient technique is excellent. In this paper the experimental results of the growth of large C60 single crystals are reported and the morphological and structural characterizations are discussed in detail.