Photophysicochemical studies of phenylthio phthalocyanines: interaction with gold nanoparticles and applications in dye sensitised solar cells and optical limiting

Forteath, Shaun (2012) Photophysicochemical studies of phenylthio phthalocyanines: interaction with gold nanoparticles and applications in dye sensitised solar cells and optical limiting. Masters thesis, Rhodes University.

[img]
Preview
Text
FORTEATH-MSc-TR12-60.pdf

2070Kb

Abstract

The syntheses, spectroscopic characterisation, photophysical and photochemical studies have been conducted for a variety of phenylthio substituted phthalocyanines (Pcs). Comparisons have been made taking into consideration the influence of the central metal ion, solvent properties and substituent type. The optical limiting properties were also determined for all the Pcs synthesised. A low-symmetry metallophthalocyanine complex was similarly characterised and the photoelectrochemical parameters determined when used as a sensitiser of nanoporous ZnO. The symmetric analogue was conjugated to gold nanoparticles to determine the influence of interactions on its photophysical properties and distinct differences occurred in the absorption and fluorescence spectra suggesting successful formation of conjugates.

Item Type:Thesis (Masters)
Uncontrolled Keywords:Syntheses, Spectroscopic characterisation, Studies, Photophysical, Photochemical, Photoelectrochemical, Parameters, Phenylthio substituted, Phthalocyanines, Central metal ion, Solvent properties, Sustituent type, Metallophthalocyanine, Nanoporous ZnO, Gold, Nanoparticles, Fluorescence spectra, Conjugates
Subjects:Q Science > QD Chemistry
Q Science > QD Chemistry > QD71 Analytical chemistry
Divisions:Faculty > Faculty of Science > Chemistry
Supervisors:Nyokong, Tebello
ID Code:2951
Deposited By: Philip Clarke
Deposited On:07 Jun 2012 06:30
Last Modified:07 Jun 2012 06:30
0 full-text download(s) since 07 Jun 2012 06:30
0 full-text download(s) in the past 12 months
More statistics...

Repository Staff Only: item control page