Photophysical and electrochemical investigation of highly conjugated pyridine based diphenylamine materials

Derivatives of diphenylamine and benzothiadiazole in optoelectronic applications: a review

“…The compounds exhibited excellent solubility in toluene, dichloromethane, and tetrahydrofuran, and a low band gap, which was 1.8 eV for DPA-PA-3 and 1.9 eV for DPA-PA-1 and DPA-PA-2 (Fig. 2) [33].…”

“…DPA, as an electron donor unit, is combined in many experiments with various electron acceptors, thanks to which the resulting structures show fluorescence and non-linear optical properties. Electron transport in chemistry is extremely important, so DPA is an ideal candidate for the synthesis of optoelectronic materials [33].…”

“…Researchers at the Vellore Institute of Technology [33] synthesized three donor-acceptor molecules (DPA-PA) based on Knoevenagel condensation. In the reactions, the electron donor was DPA and the acceptors were pyridineacetonitrile (PA) groups.…”

“…Also important for optoelectronic studies are the cyanovinylene bonds formed in compounds DPA-PA 1-3 (Fig. 2) [33], which increased the flexibility of energy levels and improved optoelectronic properties. They were confirmed by the FTIR spectrum with a peak of 2215 cm −1 , and a singlet of 8.3 ppm in 1 H NMR.…”

Optical, electrochemical and electrical properties of p-N,N-dimethyl-amino-benzylidene-malononitrile thin films

“…This type of organic semiconductors offers many advantages such as simple synthesis, easy purification, high solubility and low cost [5][6][7]. Donor-Acceptor systems receive great attention in optoelectronic applications because of their binary charge transfer property and their charge trapping/detrapping process [8][9][10]. Molecular engineering have led to rapid progress in the field of the synthesis of donor-acceptor small organic molecules.…”