Patterning of organic semiconductor by photolithography for super resolution OLED displays with multi sensor integration

The purpose of this PhD is to research fundamental processes of degradation of organic semiconductors as a result of lithographic patterning of devices such OLEDs, organic photodetectors (OPDs), and quantum-dot photodetectors (QDPDs). Device dimensions of 2 to 5 microns are considered. The killer impurities that are introduced by the patterning process will be identified, and strategies will be invented to avoid them. The systematic investigation will consist of fabricating reference devices, exposing them to a series of controlled environments of chemicals, and perform analysis to map relationships and bring understanding of the phenomena. Specifically, chemical as well as optoelectronic analysis is foreseen, supported by modelling.