Exploring the multi-state photoluminescence of a thermally stable and liquid crystalline organic molecule

Abstract

The ability of materials to exhibit efficient fluorescence in both solution and aggregated states opens up new possibilities for their application in areas where both solution-based and solid-state emissions are essential. In this study, we developed a luminescent molecule and conducted investigations into its thermal stability, liquid crystal properties, absorption, and emission behavior. The studied material possesses a simple molecular structure and demonstrates high thermal stability and liquid crystallinity. It also exhibits high emission quantum yield in various states, including crystals, liquid crystals, and liquids, while maintaining stable emission even at high temperatures. The molecule also emitted blue linearly polarized light. This unique combination of features can be attributed to factors such as the rigidity of the molecular structure, the intermolecular interactions of the fluorophore, and the presence of specific functional groups that enhance both thermal stability and emission behavior. The molecule's unique properties have significant potential for various applications in optoelectronics, sensors, displays, and photonics, with a particular emphasis on organic light-emitting diodes (OLEDs) and photovoltaics.