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Thermally Stimulated Current Investigation of Copper Octaethylporphyrin Dimer Langmuir−Blodgett Films

Arnold, Dennis, Filippo, Emanuela, Micocci, G, Serra, A, Siciliano, Tiziana, Tepore, A, & Valli, L (2005) Thermally Stimulated Current Investigation of Copper Octaethylporphyrin Dimer Langmuir−Blodgett Films. Langmuir: The A C S Journal of Surfaces and Colloids, 21(1), pp. 294-298.

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Abstract

Langmuir−Blodgett films containing meso,meso‘-buta-1,3-diyne-bridge Cu(II) octaethylporphyrin dimer have been deposited with the aim of carrying out a thermally stimulated current (TSC) investigation. This characterization was obtained upon cooling samples irradiated by light and others without irradiation: in this way TSC curves have been registered in the temperature range of 100−300 K. Analysis of experimental data has been performed through the application of three different approaches: the initial rate, the heating rate, and Chen's methods. In particular, a trap center at about 0.38 eV has been evidenced and the three different methods have given results in close accordance.

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5 citations in Web of Science®

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ID Code: 22068
Item Type: Journal Article
Additional Information: This article is freely available from the American Chemical Society website 12 months after the publication date. See links to publisher website in this record.
Keywords: Langmuir-Blodgett, Porphyrin, Molecular Semiconductors
DOI: 10.1021/la048020s
ISSN: 0743-7463
Subjects: Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > PHYSICAL CHEMISTRY (INCL. STRUCTURAL) (030600)
Divisions: Past > QUT Faculties & Divisions > Faculty of Science and Technology
Deposited On: 17 Jun 2009 23:04
Last Modified: 29 Feb 2012 23:16

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