Ivanyuk K. Development of nanoscale light-emitting structures based on ambipolar containing carbazole semiconducters

The thesis is devoted to development of nanoscale light-emitting structures based on bipolar carbazole containing semiconductors, including light-emitting structures based on ambipolar semiconducting materials and donor-acceptor heterostructures. The high- efficient OLEDs based on ambipolar material with a switch-on voltage of2.0-2.2 V and brightness to 62000 cd/m2 and the external quantum yield to 4.2% were fabricated, which allows their using in display technologies.And the yellow and white luminescence high-efficientOLEDs based on organic donor and acceptor materials with the thermo-activated delay fluorescencemechanismswerefabricated and investigated their optical and electrical properties. The influence of deposition technology of organic films on electrical and optical properties of OLEDs was investigated.