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Information × Registration Number 0214U007654, 0114U007092 , R & D reports Title White organic light-emitting diodes development on the bases of the phosphorescent iridium complexes for the power-saving illumination elements popup.stage_title Head Volyniuk Dmutro Yrijevych, Registration Date 25-12-2014 Organization Lviv Polytechnic National University popup.description2 The starburst carbazole derivative and phosphorescent bis-cyclometalated iridium(III) complex (IC2) were used for the preparation of multilayered "warm-white" organic light-emitting diodes (OLEDs), the emission spectra of which are modulated by the thickness of the phosphorescent layer. It was shown that the electroluminescence spectra of the fabricated devices are more extended into the visible region compared with the photoluminescence spectra of both component materials. With dependence on the iridium(III)-complex film thickness (5-9 nm), the CIE coordinates changed from (0.41, 0.41) to (0.52, 0.47), corresponding to the warm white and orange color. The brightness of the fabricated OLEDs at the 15 V bias was in the range from 500 to 6000 cd/m2. A three-terminal organic light-emitting device with a periodic interrupted middle electrode is developed to allow for an adjustable emission color. The emission results from three independent light-emitting diodes with one diode utilizing exciplex emission.5481 Product Description popup.authors Волинюк Дмитро Юрійович Готра Зенон Юрійович Стахіра Павло Йосипович Черпак Владислав Володимирович popup.nrat_date 2020-04-02 Close