Multi-Functional Materials Based on Cu-Doped TiO Ceramic Fibers with Enhanced Pseudocapacitive Performances and Their Dielectric Characteristics.

In this work, pure TiO and Cu (0.5, 1, 2%)-doped TiO composites prepared by electrospinning technique followed by calcination at 900 °C, and having high pseudocapacitive and dielectric characteristics were reported. These nanocomposites were characterized by scanning electron microscopy, X-ray diffraction, and dynamic water sorption vapor measurements.

Arylenevinylene Oligomer-Based Heterostructures on Flexible AZO Electrodes.

We investigated the optical and electrical properties of flexible single and bi-layer organic heterostructures prepared by vacuum evaporation with a p-type layer of arylenevinylene oligomers, based on carbazole, 3,3' bis(N hexylcarbazole)vinylbenzene = L13, or triphenylamine, 1,4 bis [4 (N,N' diphenylamino)phenylvinyl] benzene = L78, and an n-type layer of 5,10,15,20-tetra(4-pyrydil)21H,23H-porphyne = TPyP. Transparent conductor films of Al-doped ZnO (AZO) with high transparency, >90% for wavelengths > 400 nm, and low resistivity, between 6.9 × 10 Ω·cm and 23 × 10 Ω·cm, were deposited by pulsed laser deposition on flexible substrates of polyethylene terephthalate (PET).

An electrochemical study of two self-dopable water-soluble aniline derivatives: electrochemical deposition of copolymers.

An electrochemical study of two water-soluble aniline derivatives, N-(3-sulfopropyl) aniline (AnPS) and N-(3-sulfopropyl) p-aminodiphenylamine (DAnPS), in aqueous acidic electrolytic solutions containing different kinds of doping anions (Cl (-), SO(4) (2-), and ClO(4) (-)) was carried out. At sufficiently high anodic potential, the sulfonated aniline derivatives undergo oxidation processes yielding cation-radical and dimer intermediates, but no polymer deposition was observed on the working electrode surface. Experimental results showed that both aniline derivatives are electroactive compounds exhibiting redox behaviour in the range of potential of -0.

Synthesis and optoelectronic characterization of some star-shaped oligomers with benzene and triphenylamine cores.

Six star-shaped oligomers containing triphenylamine (D1-D3) and benzene unit (D4-D6) as cores have been synthesized by Wittig condensation or Heck coupling reaction using aromatic aldehydes and triphenylphosphonium salts or aromatic halogenated compounds with vinyl triphenylamine. All oligomers have well-defined molecular structure and high purity. Characterization of the oligomers was made by FT-IR, (1)H-NMR spectroscopy, UV-Vis, and fluorescence spectroscopy.

Triphenylamine-based rhombimine macrocycles with solution interconvertable conformation.

Three imine macrocycles having rhomboidal shape were synthesized in good yields by [2+2] cyclocondensation reaction between equimolar quantities of (R,R)-1,2-diaminocyclohexane and 4,4'-bisformyl triphenylamine derivatives. The macrocycles structure was assigned by electrospray ionization mass spectrometry (ESI-MS), (1)H-NMR, and elemental analysis. UV, FTIR spectroscopy, and TG measurements were also used to characterize and prove the structure of these compounds.