Loading…

Cyclic voltammetry of non-peripheral thioaryl substituted phthalocyanines

Phthalocyanines have become of major interest as functional colorants for dye-sensitized photovoltaic cells. Syntheses of non-peripheral (1,4,8,11,15,18,22,25) thioaryl substituted phthalocyanines have been reported. These phthalocyanines exhibited a Q band in the near-infrared region. In order to d...

Full description

Saved in:
Bibliographic Details
Published in:Dyes and pigments 2013-02, Vol.96 (2), p.430-434
Main Authors: Sakamoto, Keiichi, Furuya, Naoki, Soga, Hisashi, Yoshino, Satoru
Format: Article
Language:English
Subjects:
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Phthalocyanines have become of major interest as functional colorants for dye-sensitized photovoltaic cells. Syntheses of non-peripheral (1,4,8,11,15,18,22,25) thioaryl substituted phthalocyanines have been reported. These phthalocyanines exhibited a Q band in the near-infrared region. In order to develop next generation photovoltaic cells, we have synthesized 1,4,8,11,15,18,22,25-octakis(thioaryl)phthalocyanines and estimated their electron transfer ability using cyclic voltammetry. In the cyclic voltammograms, these compounds showed reduction and oxidation potentials, which are attributed to the presence of the sulfur atoms in the thioaryl substituents at the peripheral positions of phthalocyanine. The electron transfer mechanisms of the phthalocyanines having cobalt and zinc as their central metal atoms were attributed to reduction and oxidation of their central metal, while electron transfer in the other metal-free compounds resulted from the highest occupied molecular orbital to the lowest unoccupied molecular orbital electron transitions. ► In order to develop next generation photovoltaic cells. ► Synthesis of 1,4,8,11,15,18,22,25-octakis(thioaryl)phthalocyanines. ► Estimation of their electron transfer ability using cyclic voltammetry.
ISSN:0143-7208
1873-3743
DOI:10.1016/j.dyepig.2012.08.025