PREPARATION OF CDS MICROCRYSTALS COVALENTLY BOUND WITH VIOLOGEN GROUPS AND THEIR PHOTOELECTROCHEMICAL PROPERTIES

Authors
TORIMOTO T MAEDA K SAKATA T MORI H YONEYAMA H
Citation
T. Torimoto et al., PREPARATION OF CDS MICROCRYSTALS COVALENTLY BOUND WITH VIOLOGEN GROUPS AND THEIR PHOTOELECTROCHEMICAL PROPERTIES, Chemistry Letters, (6), 1994, pp. 977-980
Citations number
13
Categorie Soggetti
Chemistry
Journal title
Chemistry Letters → ACNP
ISSN journal
03667022
Issue
6
Year of publication
1994
Pages
977 - 980
Database
ISI
SICI code
0366-7022(1994):6<977:POCMCB>2.0.ZU;2-O
Abstract
CdS microcrystals (Q-CdS) covalently bound with 1-decyl-1'-(3-mercapto ) propyl-4,4'-bipyridinium were prepared. The surface viologen groups picked up photo-generated electrons in the conduction band of Q-CdS pa rticles, causing a decrease of their emission. Irradiation of these pa rticles resulted in new absorption peaks which are assigned to viologe n radical cation monomers and their dimers. The photo-reduced viologen groups can mediate photo-generated electron transfer from Q-CdS to me thylene blue in solution.