Issue 5, 2011

Highly fluorescent organic nanoparticles of thiacyanine dye: A synergetic effect of intermolecular H-aggregation and restricted intramolecular rotation

Abstract

Highly fluorescent organic nanoparticles are synthesized via ion-association between 3,3′-diethylthiacyanine (TC) cation and tetrakis(4-fluorophenyl)borate anion in the presence of a neutral stabilizing polymer in water. The fluorescence shows a significant increase with a decrease in the nanoparticle size, resulting in a high fluorescence quantum yield of about 0.8–0.9. The observed fluorescence enhancement is due to a synergetic effect of both restriction of intramolecular rotation of TC and intermolecular H-aggregation in an inclined manner.

Graphical abstract: Highly fluorescent organic nanoparticles of thiacyanine dye: A synergetic effect of intermolecular H-aggregation and restricted intramolecular rotation

Supplementary files

Article information

Article type
Paper
Submitted
03 Jun 2011
Accepted
15 Jul 2011
First published
01 Sep 2011

RSC Adv., 2011,1, 834-838

Highly fluorescent organic nanoparticles of thiacyanine dye: A synergetic effect of intermolecular H-aggregation and restricted intramolecular rotation

H. Yao and K. Ashiba, RSC Adv., 2011, 1, 834 DOI: 10.1039/C1RA00497B

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