ИСТИНА

Currently, the development of organic hole-transport materials that can be used in various optoelectronic devices, such as organic field-effect transistors, solar cells, and light-emitting diodes, is of great interest. Compared to their inorganic counterparts, organic hole-transport materials are soluble, film-forming, environmentally friendly, and have the ability to fine-tune their physicochemical properties through molecular design1. Such materials are π-conjugated polymers based on triphenylamine2. In addition to the presence of hole conductivity, such compounds are usually thermally stable, have high glass transition temperatures, and the amorphous structure of TFA polymers makes them soluble in various organic solvents and contributes to the appearance of good film-forming properties. The synthesis of polymers based on TFA with a donor-acceptor (D-A) structure makes it possible to control the energy of molecular orbitals, the values of the band gap, and the maxima of the absorption and emission spectra. In this work, we present the synthesis of new polymers based on TPA D-A structures. The molecular weight characteristics of polymers have been studied, and the results of a comprehensive study of their optical, electrochemical, and thermal properties have been presented. In this work, we present the synthesis of new polymers based on TPA D-A structures3. The polymers contain various acceptor groups in their structure and are distinguished by the presence of a thiophene π-spacer. The molecular weight characteristics of polymers have been studied, and the results of a comprehensive study of their optical, electrochemical, and thermal properties have been presented.