Nanoscale C60 aggregates in solution

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

doi:10.1117/12.283758

Nanoscale C₆₀ aggregates in solution

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

Research output: Contribution to journal › Conference article › peer-review

3 Citations (Scopus)

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 bezene at ∼ 260 K transforms them to stable substances under atmosphere, which look like round-shaped nanoscale particles in the high-resolution transmission electron microscopy (HRTEM) images.

Original language	English
Pages (from-to)	196-204
Number of pages	9
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	3142
DOIs	https://doi.org/10.1117/12.283758
Publication status	Published - 1997
Event	fullerenes and Photonics IV - San Diego, CA, United States Duration: 28 Jul 1997 → 29 Jul 1997

Keywords

Aggregates
Clusters
Exciton
Fullerene
High-resol ution transmission electron microscopy
Photoluminescence
Solution

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10.1117/12.283758

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@article{389c5456d9e740bd825337cf51548dbd,

title = "Nanoscale C60 aggregates in solution",

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 bezene at ∼ 260 K transforms them to stable substances under atmosphere, which look like round-shaped nanoscale particles in the high-resolution transmission electron microscopy (HRTEM) images.",

keywords = "Aggregates, Clusters, Exciton, Fullerene, High-resol ution transmission electron microscopy, Photoluminescence, Solution",

author = "Ahn, \{Jeung Sun\} and Keisuke Suzuki and Yoshihiro Iwasa and Nobuo Otsuka and Tadaoki Mitani",

year = "1997",

doi = "10.1117/12.283758",

language = "English",

volume = "3142",

pages = "196--204",

journal = "Proceedings of SPIE - The International Society for Optical Engineering",

issn = "0277-786X",

publisher = "SPIE",

note = "fullerenes and Photonics IV ; Conference date: 28-07-1997 Through 29-07-1997",

}

TY - JOUR

T1 - Nanoscale C60 aggregates in solution

AU - Ahn, Jeung Sun

AU - Suzuki, Keisuke

AU - Iwasa, Yoshihiro

AU - Otsuka, Nobuo

AU - Mitani, Tadaoki

PY - 1997

Y1 - 1997

N2 - 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 bezene at ∼ 260 K transforms them to stable substances under atmosphere, which look like round-shaped nanoscale particles in the high-resolution transmission electron microscopy (HRTEM) images.

AB - 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 bezene at ∼ 260 K transforms them to stable substances under atmosphere, which look like round-shaped nanoscale particles in the high-resolution transmission electron microscopy (HRTEM) images.

KW - Aggregates

KW - Clusters

KW - Exciton

KW - Fullerene

KW - High-resol ution transmission electron microscopy

KW - Photoluminescence

KW - Solution

UR - https://www.scopus.com/pages/publications/0031304498

U2 - 10.1117/12.283758

DO - 10.1117/12.283758

M3 - Conference article

AN - SCOPUS:0031304498

SN - 0277-786X

VL - 3142

SP - 196

EP - 204

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

T2 - fullerenes and Photonics IV

Y2 - 28 July 1997 through 29 July 1997

ER -

Nanoscale C₆₀ aggregates in solution

Abstract

Keywords

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