Nanosized crystallites of charge-transfer complex of 9-methylanthracene and 1,2,4,5-tetracyanobenzene for bright and optically anisotropic fluorescent probes

被引：11

作者：

Hosaka, Noriko ^{[1
]}

Obata, Masahiro ^{[2
]}

Suzuki, Motohiko ^{[2
]}

Saiki, Toshiharu ^{[1
,2
]}

Takeda, Kenji ^{[3
,4
]}

Kuwata-Gonokami, Makoto ^{[3
,4
]}

机构：

[1] Kanagawa Acad Sci & Technol, Takatsu Ku, Kanagawa 2130012, Japan

[2] Keio Univ, Dept Elect & Elect Engn, Kohoku Ku, Yokohama, Kanagawa 2238522, Japan

[3] Univ Tokyo, Dept Appl Phys, Bunkyo Ku, Tokyo 1138656, Japan

[4] Japan Sci & Technol Agcy, SORST, Bunkyo Ku, Tokyo 1138656, Japan

来源：

APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 11期

关键词：

D O I：

10.1063/1.2899056

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Nanocrystallites of charge-transfer (CT) complexes with an average size of 20-40 nm were synthesized from ethyl acetate solutions of 9-methylanthracene and 1,2,4,5-tetracyanobenzene by means of spin coating. The optical properties of nanocrystallites were investigated by dark-field and fluorescence imagings. No blinking behavior was observed. Fluorescence brightness and photostability comparable to a standard dye-doped polystyrene sphere were confirmed. We found a pronounced dependence of fluorescence intensity on the polarization of excitation light due to optical anisotropy of the nanocrystallites. The results indicate that the CT nanocrystallite is a promising tool for the observation of rotational motion of nanoobjects in nanofluidics. (C) 2008 American Institute of Physics.

引用

页数：3

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