Gelzynskyy I. Development of the organic nanoscale light-emitting white colored structures

The dissertation focuses on the development of highly efficient multilayer nanoscale organic structures of white radiation based on newly synthesized intermolecular and intramolecular exciplex-forming materials and the development of a new generation of microcircuits to control WOLED and LED-based modes. It has been shown that phosphorescent and other types of highly efficient organic emitters have great potential for improving color saturation, increasing the service life and commercialization of WOLED. Newly synthesized donor-acceptor-type compounds with intramolecular charge transfer states, in which carbazole is used as a donor fragment, and aromatic amide (CzPhPI and CzPhNI) is used as an acceptor fragment, have been discovered. The phenomenon of delayed thermoactivated fluorescence (TADF) has been detected for the first time in these compounds. Based on the obtained research results, a number of organic light-emitting structures have been developed and an intelligent driver for voltage control has been developed. The fundamental problem solved in this work is the construction of scientific bases for the creation of highly efficient multilayer nanoscale organic structures of white radiation and control devices for lighting systems.