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Proceedings Paper

Nanoscale C60 aggregates in solution
Author(s): Jeung Sun Ahn; Keisuke Suzuki; Yoshihiro Iwasa; Nobuo Otsuka; Tadaoki Mitani
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Paper Abstract

Formation of C60 aggregates has been found in toluene, benzene, and carbon disulfide (CS2) solutions by means of photoluminescence spectroscopy. From the detailed investigation of the temperature dependence of luminescence, it has been confirmed that the C60 aggregates are formed at freezing temperature of these solvents in the cooling process and are weakly bound clusters which are decomposed into C60 molecules at temperatures higher than ca. 220 K in toluene and CS2 solutions. The 0-0 transition energy of their luminescence has been found to be blue-shifted in comparison with that of C60 crystal. It has been also found that the irradiation of ultraviolet light upon the C60 aggregates in benzene at approximately 260 K transforms them to stable substances under atmosphere, which look like round-shaped nanoscale particles in the high-resolution transmission electron microscopy images.

Paper Details

Date Published: 1 November 1997
PDF: 9 pages
Proc. SPIE 3142, Fullerenes and Photonics IV, (1 November 1997); doi: 10.1117/12.283758
Show Author Affiliations
Jeung Sun Ahn, Japan Advanced Institute of Science and Technology (Japan)
Keisuke Suzuki, Japan Advanced Institute of Science and Technology (Japan)
Yoshihiro Iwasa, Japan Advanced Institute of Science and Technology (Japan)
Nobuo Otsuka, Japan Advanced Institute of Science and Technology (Japan)
Tadaoki Mitani, Japan Advanced Institute of Science and Technology (Japan)


Published in SPIE Proceedings Vol. 3142:
Fullerenes and Photonics IV
Zakya H. Kafafi, Editor(s)

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