Energy beams such as ion and laser beams were employed to convert carbon allotropes into another ones at the specified position because these energy sources can be controlled precisely in time and space. The ion beam deposition technique employing mass-separated ions was effective to study the nucleation process by changing several growth parameters (ion species, incident energies and substrate temperatures). Immersed nano-sized diamonds were found in s-1ptp³ rich amorphous film prepared with 100 eV ¹²C⁺ ions at room temperature. Surrounding these nano-diamonds, the regularly arrayed small bumps, "petals", were formed around the periphery of bald circles when cooling down. The Ar ion laser illumination is effective to design the array of high luminescent points on a C₆₀ film by careful control of laser power, and a combination of micro-Raman spectrometer with a piezo-scanning system provides us a tool for 2-dimensional processing of photo-sensitive materials. The simultaneous bombardment during the C₆₀ evaporation results in the interesting pattern formation specific for the simultaneous treatment. The dependence of surface nano-scale pattern on the ion energy and the substrate temperatures provides us a new tool to design the nano-scale functional materials. As an extreme, the appearance of hexagonal diamonds was detected with the disordered carbon and graphite under the condition of high ratio between the Ne ion beam and the C₆₀ thermal beam.

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Дата начала обработки статистических данных - 27 января 2016 г.