Nanoscale C60 aggregates in solution

Jeung Sun Ahn; Keisuke Suzuki; Yoshihiro Iwasa; Nobuo Otsuka; Tadaoki Mitani

doi:10.1117/12.283758

1 November 1997 Nanoscale C₆₀ aggregates in solution

Jeung Sun Ahn, Keisuke Suzuki, Yoshihiro Iwasa, Nobuo Otsuka, Tadaoki Mitani

Proceedings Volume 3142, Fullerenes and Photonics IV; (1997) https://doi.org/10.1117/12.283758
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

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.

Citation Download Citation

Jeung Sun Ahn, Keisuke Suzuki, Yoshihiro Iwasa, Nobuo Otsuka, and Tadaoki Mitani "Nanoscale C₆₀ aggregates in solution", Proc. SPIE 3142, Fullerenes and Photonics IV, (1 November 1997); https://doi.org/10.1117/12.283758

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