Atomic Force and Scanning Near-Field Optical Microscopy Study of Carbocyanine Dye J-aggregates

ISSN: 1875-6786 (Online)
ISSN: 1573-4137 (Print)


Volume 10, 6 Issues, 2014


Download PDF Flyer




Current Nanoscience

Aims & ScopeAbstracted/Indexed in

Ranking and Category:
  • 120th of 251 in Materials Science, Multidisciplinary

Submit Abstracts Online Submit Manuscripts Online

View Full Editorial Board

Subscribe Purchase Articles Order Reprints

Current: 1.422
5 - Year: 1.579

Atomic Force and Scanning Near-Field Optical Microscopy Study of Carbocyanine Dye J-aggregates

Author(s): V.V. Prokhorov, M.G. Petrova, N.N. Kovaleva and E.I. Demikhov

Affiliation: Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 31 Leninsky pr., Moscow, 119991 Russia.

Abstract

Atomic force microscopy (AFM) and scanning near-field optical microscopy (SNOM) imaging of fibrillar J-aggregates of carbocyanine dye 3,3’-bis(2-sulfopropyl)-5,5’,6,6’-tetrachloro-1,1’- dioctylbenzimidacarbocyanine (C8S3) have been conducted on mica and glass substrates at a room temperature. High resolution AFM imaging reveals that thick fibrils consist of narrow subfibrils with the cross diameter in the nanometer range. A model of the "elementary fibril" with the cross-dimension of 3x4 nm2 was proposed as the aggregate of two J-ladders oriented face-to-face by their hydrophobic sides while the dye molecules are oriented normaly to the long fibril axis. The SNOM measurements have been conducted in the contact mode indicating the large mechanical strength on the fibrillar J-aggregate morphology.




Keywords: Carbocyanine dye, elementary fibril, high-resolution atomic force microscopy, J-aggregate, probe microscopy, scanning near-field optical microscopy.

Purchase Online Rights and Permissions

  
  



Article Details

Volume: 10
Issue Number: 5
First Page: 700
Last Page: 704
Page Count: 5
DOI: 10.2174/1573413710666140411000614
Advertisement

Related Journals




Webmaster Contact: urooj@benthamscience.org Copyright © 2014 Bentham Science