AIE-active mechanoluminescent discotic liquid crystals for applications in OLEDs and bio-imaging
Joydip De, Abdul Haseeb M. M., Rohit Ashok Kumar Yadav, Santosh Prasad Gupta, Indu Bala, Prateek Chawla, Kiran Kishore Kesavan, Jwo‐Huei Jou, Santanu Kumar Pal
Abstract
A multifunctional molecular design of fluorescent discotic liquid crystal (DLC) consisting of a tetraphenylethylene core is reported, which is found to serve as an excellent solid-state emitter in OLED devices with EQE of 4.4% and tunable mechanochromism. X-ray diffraction studies unveiled that change in supramolecular self-assembly is the physical origin of mechanochromism. The luminescent DLC molecule has been shown to act as a highly selective probe for labelling acidic cellular compartments (such as lysosomes) in bio-imaging using HeLa cells.
Topics & Concepts
TetraphenylethyleneMaterials scienceOLEDDiscotic liquid crystalFluorescenceLiquid crystalOptoelectronicsAggregation-induced emissionNanotechnologyOpticsLayer (electronics)PhysicsLuminescence and Fluorescent MaterialsLiquid Crystal Research AdvancementsOcular Surface and Contact Lens