Regioisomers containing triarylboron-based motifs as multi-functional photoluminescent materials: from dual-mode delayed emission to pH-switchable room-temperature phosphorescence
Ramar Arumugam, Akkarakkaran Thayyil Muhammed Munthasir, Ramkumar Kannan, Dipanjan Banerjee, Pagidi Sudhakar, S. Venugopal Rao, Pakkirisamy Thilagar, Vadapalli Chandrasekhar
Abstract
= 42 ms) in response to pH, which can be utilized for anti-counterfeiting applications. These results were further corroborated by studying the respective cationic salts 1-OTF and 2-OTF. Moreover, 1 and 2 exhibited blue-shifted fluorescence in response to mechanical pressure. Compound 2 also showed three-photon (σ3P) absorption properties which were better compared to those of compound 1.
Topics & Concepts
PhosphorescencePhotoluminescenceDual modeDual (grammatical number)Materials sciencePersistent luminescencePhotochemistryChemistryOptoelectronicsLuminescenceFluorescencePhysicsElectronic engineeringOpticsThermoluminescenceLiteratureArtEngineeringLuminescence and Fluorescent MaterialsOrganic Light-Emitting Diodes ResearchConducting polymers and applications