Structural control over conductivity and conduction type in thin films of polyphenylquinones

Achievements in polycondensation and condensation polymers

“…In addition to the mentioned traditional condensa tion polymers, there is scarce information about the synthesis and properties of other types of polymers that have rapidly developed in recent years [301][302][303][304][305][306][307][308][309][310][311][312][313][314]: poly(arylene ether sulfide sulfones), polyphenylquin olines, polyphenylquinones, polybenzotriazoleim ides, polyamidines, poly[bis(itaconimides)], and poly(arylene)thiophenones. …”

Molecular design of optoelectronic structures based on carbazole- and indolocarbazole-containing polyphenylquinolines

“…One recorded the spectrum in the range 380-700 nm with excitation wavelengths exc at 350-425 nm using the procedure reported in literature. [32][33][34][35][36][37][38][39] PPQs in a matrix were prepared by casting the solutions of PPQ and a suitable matrix polymer onto a glass substrate.…”

“…At that, the polymers synthesized have a structure similar to that of polyconjugated polymers as polyimides (PIs). [21][22][23][24][25][26][27][28][29][30][31] In previous studies, [32][33][34] donor ICz fragments were introduced into the backbone of poly-2,6-phenylquinolines (PPQs) of a general formula given in Figure 1, where X stands for a bridging group and Ar stands for the heteroarylene moiety.…”

“…Besides, its photosensitive and transport properties are enhanced as well. 32 The PPQs under study, having various Ar moieties in their structural unit, possess a high carrier mobility 33 and exhibit an intense luminescence in the visible spectral range both in solution and in polymeric matrices (polymethylmethacrylate, poly-N-vinylcarbazole). [34][35][36][37][38][39] The characteristics obtained for some PPQs under investigation indicate that these compounds can be used as materials for optoelectronics and, in particular, for polymeric light-emitting diodes.…”

Conductivity and Density of States of New Polyphenylquinoline

“…For PPQ, in which phenylamine (PA) is used as the bridging group X, forms a structure similar to triphenylamine (TPA) with the quinoline ring. A nitrogen-containing donor fragment, for example, carbazole or indolo [3,2-b] carbazole, in the UV spectra, shifts the absorption edge of PPQ (PA, Ar) significantly (up to 70 nm) to the long-wavelength region and the photosensitive and transport properties are enhanced [8]. Synthesized PPQs, which have different aromatic Ar fragments in the structure of the elementary unit, have high values of carrier mobility [9] and exhibit intensive luminescence in the visible spectral region in solution and in composites [7,10,11,12,13].…”