Single molecule spectroscopy of organic dye nanoparticles

被引：81

作者：

Gesquiere, AJ

Uwada, T

Asahi, T

Masuhara, H

Barbara, PF ^{[1
]}

机构：

[1] Univ Texas, Dept Chem & Biochem, Ctr Nano & Mol Sci & Technol, Austin, TX 78712 USA

[2] Osaka Univ, Dept Appl Phys, Suita, Osaka 5650871, Japan

[3] Osaka Univ, Handai Frontier Res Ctr, Suita, Osaka 5650871, Japan

来源：

NANO LETTERS | 2005年 / 5卷 / 07期

关键词：

D O I：

10.1021/nl050567j

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Organic dye nanoparticles 1-13 nm in height and 10-45 nm in width were prepared by the reprecipitation method. With single-molecule/ nanoparticle spectroscopy, two distinct types of nanoparticles were found: particles with blue emission and particles with red emission. The difference in spectral characteristics is attributed to the presence of two morphological types of particles in the samples. The presence of two types of nanoparticles in the samples was further corroborated by our ability to separate blue nanoparticles from red nanoparticles by centrifugation.

引用

页码：1321 / 1325

页数：5

共 39 条

[1] Spatial imaging of singlet energy migration in perylene bis(phenethylimide) thin films [J].