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Preparation and electrical behaviour of photoluminiscent intercalation compounds of thionine in layered phosphates

✍ Scribed by E Rodrı́guez-Castellón; A Jiménez-López; P Olivera-Pastor; J.M Mérida-Robles; F.J Pérez-Reina; M Alcántara-Rodrı́guez; F Souto-Bachiller; L Rodrı́guez-Rodrı́guez; M Fortes; J.R Ramos-Barrado

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
588 KB
Volume
97
Category
Article
ISSN
0167-2738

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✦ Synopsis

Phyllogenic minerals expanded with luminescent propping molecules can be used to prepare photosensitive thin films in which complex energy transfer processes can be envisioned. In this communication, we report the preparation of stable linear chain polymers and lamellar assemblies of thionine by intercalation in layered tetravalent metal salts formulated as M(IV)(HPO ) ? H O with M 5 Sn and Zr. A.c. conductivity measurements of the intercalation compounds were carried out 4 2 2 by impedance methods. All samples display low activation energies ( | 0.3 eV), probably due to p interactions between the aromatic thionine rings.

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