jp5b11263_si_001.pdf (467.84 kB)
Exciplex Enhancement as a Tool to Increase OLED Device Efficiency
journal contribution
posted on 2016-02-04, 15:08 authored by Przemyslaw Data, Aleksandra Kurowska, Sandra Pluczyk, Pawel Zassowski, Piotr Pander, Rafal Jedrysiak, Michal Czwartosz, Lukasz Otulakowski, Jerzy Suwinski, Mieczyslaw Lapkowski, Andrew P. MonkmanOrganic
electronics, mainly due to advancements in OLED (organic
light-emitting diode) technology, is a fast developing research area
having already revolutionized the displays market. This direction
presents the use of exciplex emitters and thermally activated delayed
fluorescence (TADF) in OLEDs, to give efficient, stable emitters that
do not use scarce and expensive materials such as iridium. Here, it
is shown for the first time several diketopyrrolopyrrole (DPP) derivatives
that could be used as emitters in OLED devices. We were able to improve
the efficiency of DPP materials by forming exciplex-enhanced OLED
devices. These organic materials were also characterized by electrochemical
and spectroscopic methods in order to elucidate each molecule’s
interaction and decrease the photoluminescence efficiency.