Abstract
Three triphenylamine-based poly substituted salicylaldimine (anils) and corresponding N, O-moiety chelated difluoroboron complexes B1, B2, and B3 (boranils) have been synthesized and characterized via different spectroscopic techniques. Due to the high luminescence intensity, mechanoluminescent properties, ICT (Intermolecular charge transfer), and significant Stokes shift, boranils have been implemented for light-emitting devices once incorporated inside PDMS (Polydimethylsiloxane), a silicon-based polymer matrix. The Bm (a 1:1:1 mixture, w/w, of B1, B2, and B3) covered the more extended emission region in solid and PDMS film and exhibited the white light-emitting tendency. All the individual boranil/PDMS composites showed significant stability when irradiated with UV light and played a crucial role in LED performance. Notably, boranils exhibit white light-emitting efficiency when illuminated on a 325 nm laser with high color rendering index (CRI) value (96–98%). They can be enacted in several household lighting applications, including electronic and signaling devices.
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