Non-doped OLEDs based on tetraphenylethylene phenanthroimidazoles with negligible efficiency roll-off: effects of end group regulated stimulus responsive AIE luminogens
Jayaraman Jayabharathi, Shanmugam Thilagavathy, Venugopal Thanikachalam
Abstract
The positional isomers of phenanthroimidazoles, <bold>TPE-NPPB</bold> and <bold>TPE-APPB</bold>, have been designed to understand the positional effects of triphenylamine (TPA) and tetraphenylethylene (TPE) units on the aggregation-induced emission and mechanochromism.
Topics & Concepts
TetraphenylethyleneStimulus (psychology)OLEDDopingMaterials scienceOptoelectronicsNanotechnologyPsychologyAggregation-induced emissionPhysicsCognitive psychologyOpticsLayer (electronics)FluorescenceLuminescence and Fluorescent MaterialsOrganic Light-Emitting Diodes ResearchOrganic Electronics and Photovoltaics