Photoinduced vectorial charge transfer in mixed Langmuir-Blodgett films of5,10,15,20-tetrakis(3,5-di-tert-butylphenyl)porphyrin and its zinc(II) derivative

Authors
Kesti, T Vehmanen, V Morsky, S Tkachenko, N Efimov, A Lemmetyinen, H
Citation
T. Kesti et al., Photoinduced vectorial charge transfer in mixed Langmuir-Blodgett films of5,10,15,20-tetrakis(3,5-di-tert-butylphenyl)porphyrin and its zinc(II) derivative, J MAT CHEM, 10(10), 2000, pp. 2283-2288
Citations number
29
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
JOURNAL OF MATERIALS CHEMISTRY
ISSN journal
09599428 → ACNP
Volume
10
Issue
10
Year of publication
2000
Pages
2283 - 2288
Database
ISI
SICI code
0959-9428(2000)10:10<2283:PVCTIM>2.0.ZU;2-O
Abstract
Langmuir-Blodgett films containing 1 mol% 5,10,15,20-tetrakis(3,5-di-tert-b utylphenyl)porphyrin (TBP) and its zinc(II) complex (ZnTBP) in a suitable m atrix were prepared in an attempt to build a molecular-scale device capable of vectorial photoinduced electron transfer. The films were studied by abs orption and fluorescence spectroscopies, and by the time-resolved measureme nt of Maxwell displacement charge (TRMDC) across the film. The latter exper iments showed that photoinduced electron transfer takes place in the films and that its macroscopic direction can be controlled by the molecular orien tation. The TRMDC signals were unusually long-lived.