UV-visible (UV-vis), steady-state, and time-resolved photoluminescence spectroscopies are used to investigate the photophysical properties of freshly synthesised oligophenylene derivatives in this chapter. Knoevenagel condensation of produced oligo[4-(methoxyphenyl) acetonitrile] (OMPA) with various chemical groups yields the examined oligophenylene derivatives. Significant changes in photo-physical properties were observed as a result of the chemical alterations. The insertion of a dimethyl-amine group on the backbone of the OMPA oligomer reduces the optical band gap and red-shifts the absorption and photoluminescence capabilities. This is a symptom of an intermolecular charge transfer that took place as a result of the chemical alteration. Meanwhile, the addition of aromatic chemical groups (anthracene and thiophene) to the produced oligophenylene improves its luminous properties. The thermal characteristics change as a result of the chemical insertion of the focussed chemical groups.
Author (S) DetailsMourad Chemek
Synthèse asymétrique et ingénierie moléculaire de matériaux organiques pour l'électronique organique (LR18ES19), Faculté des Sciences de Monastir, 5000 Monastir, Tunisia.
Walid Taouali
Synthèse asymétrique et ingénierie moléculaire de matériaux organiques pour l'électronique organique (LR18ES19), Faculté des Sciences de Monastir, 5000 Monastir, Tunisia.
Sarra Ben Amor
Department of Chemistry, Faculty of Sciences of Gafsa, University of Gafsa, 2100 Gafsa, Tunisia.
Ayoub Haj Said
Laboratoire Interfaces et Matériaux Avancés, Faculté des Sciences de Monastir. Université de Monastir. 5000 Monastir, Tunisia and Centre de Recherche en Microélectronique et Nanotechnologie de Sousse, Novation City, 4000, Sousse, Tunisia.
Kamel Alimi
Synthèse asymétrique et ingénierie moléculaire de matériaux organiques pour l'électronique organique (LR18ES19), Faculté des Sciences de Monastir, 5000 Monastir, Tunisia.
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