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Color-Tunable Multifunctional Excited-State Intramolecular Proton Transfer Emitter: Stimulated Emission of a Single Dye.

Martyna Durko-MaciagDenis JacqueminGilles UlrichJulien MassueJaroslaw Mysliwiec
Published in: Chemistry (Weinheim an der Bergstrasse, Germany) (2022)
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.
Keyphrases
  • energy transfer
  • light emitting
  • quantum dots
  • electron transfer
  • drug delivery
  • fluorescent probe
  • cancer therapy
  • nucleic acid
  • high resolution
  • single molecule