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Color-Tunable Multifunctional Excited-State Intramolecular Proton Transfer Emitter: Stimulated Emission of a Single Dye |
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| Authors: | Martyna Durko-Maciag Prof Denis Jacquemin Dr Gilles Ulrich Dr Julien Massue Prof Jaroslaw Mysliwiec |
| Institution: | 1. Adv. Mater. Engineering and Modelling Group, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland
Insitut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé (ICPEES), UMR CNRS 7515, Universite de Strasbourg, 25 Rue Becquerel, 67087 Strasbourg, France;2. Laboratoire CEISAM UMR CNRS 6230, Nantes University, 2 Rue de la Houssiniere, 44322 Nantes, France;3. Insitut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé (ICPEES), UMR CNRS 7515, Universite de Strasbourg, 25 Rue Becquerel, 67087 Strasbourg, France;4. Adv. Mater. Engineering and Modelling Group, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland |
| Abstract: | The excited-state intramolecular proton transfer chromophores were regarded as good materials for laser action generation due to their inherent four-level photocycle. The excitation-dependent properties of these compounds enable light amplification from two distinct forms: both enol and keto, making it possible to obtain dual fluorescence emission. Herein, we report that a third option is possible for the first time stimulated emission was realized with a deprotonated ESIPT molecule based on a novel rigidified 2-(2’-hydroxyphenyl)benzothiazole derivative, triggering the possibility to fabricate real-time tunable active material. Through the rational engineering of the ratio of each emissive species, a red-green-blue device was fabricated with the possibility of white light generation. The degenerated two-wave mixing setup was applied to construct a continuously tunable distributed feedback laser. |
| Keywords: | deprotonation laser chemistry photochemistry proton transfer stimulated emission |