Paper Title:
Self-Assembled TPPS4 Nanostructures Revealed by Atomic Force Microscopy
  Abstract

Meso-tetra (4-sulfonatophenyl) porphine (TPPS4) is water-soluble tetrapyrrolic dye, which forms self assembled nanostructures – J-aggregates under appropriate conditions. It was shown, that such aggregates survive dried on the substrate. The spatial structure of TPPS4 Jaggregates formed in acidic aqueous solutions and dispersed on silicon substrates was analyzed by means of atomic force microscopy (AFM). The stripe-like structures were observed. The size of individual stripes ranged 4,5×40×(200-1000) nm (H×W×L). The width and height was almost the same for all stripes and independent upon the concentration of the solution, however the length was statistically distributed and the mean length increased with increasing concentration of initial TPPS4 solution. At higher concentrations such stripes stacked into thicker fibers containing 2-20 stripes. Such fibers branched and formed large bush-like structures sized up to several millimeters. According to experimental findings the model of mesostructures, formed by TPPS4 J-aggregates, was proposed.

  Info
Periodical
Solid State Phenomena (Volumes 97-98)
Edited by
Stepas Janušonis
Pages
191-194
DOI
10.4028/www.scientific.net/SSP.97-98.191
Citation
R. Augulis, V. Snitka, R. Rotomskis, "Self-Assembled TPPS4 Nanostructures Revealed by Atomic Force Microscopy", Solid State Phenomena, Vols. 97-98, pp. 191-194, 2004
Online since
April 2004
Export
Price
$35.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: In Hee Choi, Young Hun Kim, Chang Mook Kim, Jin Soo Kim, Kyung Hee Choi, Jong Heop Yi
Abstract:Site-defined metal microstructure was fabricated on the pre-designed organic template via a surface modification of Si(100) wafer....
903
Authors: C.H. Rosmani, S. Abdullah, Mohamad Rusop
Abstract:CdSe thin film was prepared by using spin coating method .The surface morphology of CdSe thin films can be used as the main material in solar...
401
Authors: Hong Ying Xia, Feng Zhao
Chapter 2: Nanomaterials and Nanotechnology
Abstract:In this paper, the morphology change of various polymers at the mica –water interface, such as polyvinylpyrrolidone (PVP),...
127
Authors: Zeng Lei Liu, Nian Dong Jiao, Zhi Dong Wang, Zai Li Dong, Lian Qing Liu
Chapter 2: Nano and Micro Devices and Systems
Abstract:This paper introduces atomic force microscope (AFM) deposition method to fabricate nanostructures and nanodevices. Field emission theory is...
69