Comprehensive UV-Vis and EPR spectroelectrochemical characterization of ambipolar azomethinenaphthaldiimides
PBN-AR
Instytucja
Centrum Materiałów Polimerowych i Węglowych Polskiej Akademii Nauk
Źródłowe zdarzenia ewaluacyjne
Informacje podstawowe
Główny język publikacji
en
Czasopismo
Journal of Electroanalytical Chemistry
ISSN
1572-6657
EISSN
Wydawca
Elsevier
Rok publikacji
2015
Numer zeszytu
Strony od-do
14–21
Numer tomu
745
Identyfikator DOI
Liczba arkuszy
Słowa kluczowe
en
Azomethine;
Naphthalene diimide;
Ambipolar;
Spectroelectrochemisty
en
FIELD-EFFECT TRANSISTORS;
CONJUGATED THIOPHENO-AZOMETHINES;
THIN-FILM TRANSISTORS;
NAPHTHALENE DIIMIDE;
ELECTROCHEMICAL CHARACTERIZATION;
ELECTROLUMINESCENT DEVICES;
IMINE UNITS;
N-CHANNEL;
POLYMERS;
POLYMERIZATION
Streszczenia
Język
en
Treść
Arylene diimide derivatives with imine linkages, that is, azomethinenaphthaldiimides end-capped with pyridine, thiophene, bithiophene, and (ethylenedioxy)-thiophene units and corresponding polymers with thiophene and bithiophene structure as charge-transport compounds were investigated. All compounds along with polymers form alternated electron-accepting (A)-electron-donating (D) systems, except of one contains the pyridine structure, which constitutes an A-D-A-D-A molecule. The effect of end-capping structure group on the spectroelectrochemical properties was studied. All compounds were electrochemically active and undergo reversible reduction and irreversible oxidation. They exhibited a low electrochemically (CV) calculated energy band gap (Eg), ranging from 1.09 to 1.78 eV. The lowest one was found for compound with (ethylenedioxy)-thiophene structure. Moreover, the attempt of electrochemical polymerization of azomethinenaphthaldiimides was undertaken. The changes in UV-Vis spectra recorded during electrochemical oxidation and reduction were observed. Results indicate the lack of interaction between imide groups and end-capping groups. In order to analyze the structure of charged forms created during electrochemical reduction, the EPR spectroelectrochemical measurements were performed. (C) 2015 Elsevier B.V. All rights reserved.
Cechy publikacji
oryginalny artykuł naukowy
Inne
System-identifier
PX-56b463548106eb71826e4101
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