Optical and electrochemical properties of novel thermally stable Schiff bases bearing naphthalene unit
PBN-AR
Instytucja
Centrum Materiałów Polimerowych i Węglowych Polskiej Akademii Nauk
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
128-136
Numer tomu
751
Identyfikator DOI
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Autorzy
Pozostali autorzy
+ 6
Słowa kluczowe
en
Schiff bases;
Electrochemistry;
Photoluminescence;
Organic solar cells
en
SALICYLIDENE METHYLAMINE;
SOLAR-CELLS;
IMINE UNITS;
AZOMETHINES;
POLYMERS;
PHOTOVOLTAICS;
DIARYLETHENE;
COMPLEXES;
CHEMISTRY;
BEHAVIOR
Streszczenia
Język
en
Treść
A series of novel Schiff bases via condensation reaction of 2-naphtylamine with benzaldehyde, terephthalaldehyde, 9-anthracenecarboxaldehyde, 9-phenantrenecarboxaldehyde, 2-naphthaldehyde and biphenyl-4-carboxaldehyde was synthesized and examined. In the most cases the prepared compounds exhibited the temperature of 5% weight loss about 270 degrees C. Resulting imines exhibited similar photoluminescence properties and emitted blue light in its blends with PMMA with quantum yield efficiency in the range of 1.98-9.69%. The highest luminescence intensity exhibited Schiff bases consisting of two naphthalene units. Electrochemical measurements (CV and DPC) revealed, in the most cases, two reversible reduction and irreversible oxidation processes. They showed a low value of electrochemically calculated energy gap (E-g) about 1.6 eV. Additionally, the electronic properties, that is, orbital energies and resulting energy gap were calculated theoretically by density functional theory (DFT). Considering the obtained results it seems that the prepared imines can be interesting for optoelectronic applications. The reversible reduction and low E-g suggest that they can be treated as acceptors. Thus, the activity of selected compound was tested in photovoltaic solar cell with the following architecture ITO/PEDOT:PSS/P3HT or P3OT:imine/AI under illumination 1.3 mW/cm(2). The highest conversion efficiency was 0.32%, which confirmed its electron acceptor character. (C) 2015 Elsevier B.V. All rights reserved.
Cechy publikacji
oryginalny artykuł naukowy
Inne
System-identifier
PX-56b463558106eb71826e4191
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