Fullerene-rare gas mixed plasmas in an electron cyclorton resonance ion source.

Asaji, T. and Ohba, T. and Uchida, T. and Minezaki, H. and Ishihara, S. and Rácz, Richárd Péter and Muramatsu, M. and Biri, Sándor and Kitagawa, A. and Kato, Y. and Yoshida, Y. (2014) Fullerene-rare gas mixed plasmas in an electron cyclorton resonance ion source. REVIEW OF SCIENTIFIC INSTRUMENTS, 85. ISSN 0034-6748

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Abstract

A synthesis technology of endohedral fullerenes such as Fe@C60 has developed with an electron cyclotron resonance (ECR) ion source. The production of N@C60 was reported. However, the yield was quite low, since most fullerene molecules were broken in the ECR plasma. We have adopted gas-mixing techniques in order to cool the plasma and then reduce fullerene dissociation. Mass spectra of ion beams extracted from fullerene-He, Ar or Xe mixed plasmas were observed with a Faraday cup. From the results, the He gas mixing technique is effective against fullerene destruction.

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