Low energy Fe+ beam irradiation to C60 thin film

A new electron cyclotron resonance ion/plasma source has been designed and will be built at Oshima National College of Maritime Technology by early 2014. We have developed an ion source that allows the control of the plasma parameters over a wide range of electron temperatures for material research. A minimum-B magnetic field composed of axial mirror fields and radial cusp fields was designed using mainly Nd-Fe-B permanent magnets. The axial magnetic field can be varied by three solenoid coils. The apparatus has 2.45 GHz magnetron and 2.5-6.0 GHz solid-state microwave sources.

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Synthesis of endohedral-fullerenes using laser ablation plasma from solid material and vaporized fullerenes

Itagaki

Fujiwara

Minowa

et al. 2019

AIP Advances

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We have recently developed a technique to synthesize endohedral fullerenes that involves the collision of vaporized fullerenes and plasma particles produced following the laser ablation of a solid material. Using this technique, we synthesized N@C60 using a boron nitride rod as the source of the plasma particles. Optical emission measurements showed that the kinetic energy of N+ ions could be controlled from 20 to 65 eV by changing the energy of the incident laser beam. The synthesis of N@C60 was performed with a N+ kinetic energy of 65 eV, a C60 vaporizing temperature of 800 °C, and a total reaction time of one hour. By optimizing the kinetic energy for producing the encapsulated particles, we were able to synthesis N@C60 with a purity of 4.52 x 10−3%. The purity of our material was two orders of magnitude higher than that achieved using alternative physical synthetic methods that use solid materials, such as arc discharge and co-evaporation methods.

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Low energy Fe+ beam irradiation to C60 thin film

Cited by 4 publications

References 7 publications

Synthesis of Fe–C60 complex by ion irradiation

Synthesis of Fe–C60 complex by ion irradiation

Design of a new electron cyclotron resonance ion source at Oshima National College of Maritime Technology

Synthesis of endohedral-fullerenes using laser ablation plasma from solid material and vaporized fullerenes

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