Multifunctional Fluorescent Tetraphenylethene-Based Reversible Mechanochromism for Highly Selective Detection of MnO<sub>4</sub><sup>–</sup> in Aqueous Media and Green Organic Light Emitting Diode Applications
Kishor S. Jagadhane, Ray J. Butcher, Tukaram D. Dongale, Kiran A. Nirmal, Govind B. Kolekar, Mohaseen S. Tamboli, Tae Geun Kim, Sunita Salunke‐Gawali, Prashant V. Anbhule
Abstract
Ethyl 2-cyano-3-(4-(1,2,2-triphenylvinyl) phenyl) acrylate (TPE-SKJ), a newly synthesized luminogen based on tetraphenylethene, with single crystal analysis exhibits photophysical phenomena such as aggregation-induced emission (AIE); reversible mechanochromic, solvatochromic, organic light emitting diode; and chemical sensing in aqueous media with great selectivity and a low limit of detection. The synthesized material demonstrates high selectivity and sensitivity capacity for sensing MnO 4 – in mixed aqueous media (water/acetonitrile, v/v, 9/1). The detection limit for MnO 4 – was found to be 0.086009 μg mL –1 with a quantum yield (Φ) of 11%. Moreover, we employed TPE-SKJ material in an organic light-emitting diode (OLED) as an emissive layer. The device shows a maximum of 1.62% external quantum efficiency, higher than nondoped emitting layer-based green OLEDs. The present results will encourage ongoing research into the design of novel stimuli-responsive organic materials with switchable properties based on their supramolecular interactions for numerous applications.