New Semiconducting Poly(arylene sulfide)s: Synthesis,Characterization, and Optical Properties |
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| Authors: | Nejmeddine Jaballah Khaled Hriz Mejed Chemli Jean-Louis Fave Mustapha Majdoub |
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| Institution: | 1. Laboratory of Interfaces and Advanced Materials, Faculty of Science, University of Monastir , Monastir , Tunisia;2. Institut des Nanosciences de Paris (INSP), UMR 7588-CNRS, Université Pierre et Marie Curie (UPMC) , Paris , France |
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| Abstract: | New semiconducting soluble poly(arylene sulfide)s were synthesized by Wittig polycondensation. The arylene moieties consist of distyrylbiphenyl (P1) and distyrylbithiophene (P2) π-conjugated systems. The polymers are fully amorphous and show good thermal stability. The absorption and photoluminescence properties of the polymers were investigated. P1 film has an optical gap of 2.95 eV and exhibits green-blue fluorescence. P2 shows a longer effective conjugation length with a gap of 2.42 eV and emits in the orange region. The HOMO/LUMO energy levels were estimated by cyclic voltammetry measurements. Single-layer diodes were fabricated and show relatively low turn-on voltages. |
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| Keywords: | Optical properties Organic semiconductors Poly(arylene sulfide)s Thin solid films |
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