PHOTOELECTROCHEMISTRY OF A SUBSTITUTED-RU(BPY)(3)(2-LABELED POLYIMIDEAND NANOCRYSTALLINE SNO2 COMPOSITE FORMULATED())

Authors
LI WJ OSORA H OTERO L DUNCAN DC FOX MA
Citation
Wj. Li et al., PHOTOELECTROCHEMISTRY OF A SUBSTITUTED-RU(BPY)(3)(2-LABELED POLYIMIDEAND NANOCRYSTALLINE SNO2 COMPOSITE FORMULATED()), The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory, 102(28), 1998, pp. 5333-5340
Citations number
33
Categorie Soggetti
Chemistry Physical
Journal title
The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory → ACNP
ISSN journal
10895639
Volume
102
Issue
28
Year of publication
1998
Pages
5333 - 5340
Database
ISI
SICI code
1089-5639(1998)102:28<5333:POASP>2.0.ZU;2-E
Abstract
Composite nanocrystalline SnO2 thin films layered with a polyimide sen sitizer to which is attached a Ru(bpy)(3)(2+) derivative were prepared by spin-coating. Photophysical and electrochemical properties of such composite films, when formulated as polymer-modified electrodes, are described. Excitation spectra of both composite films and of the disso lved polymer indicate substantial ground-state aggregation of the pend ent ruthenium(II) complexes. Because of high loading of the pendent ru thenium(II) complex in the composite, high adsorptivity by the dye is attained. A maximum incident photon-to-photocurrent conversion efficie ncy (IPCE%) of 16% was observed upon monochromatic photosensitization at 460 nm.