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Article Dans Une Revue Nanomaterials Année : 2019

Natural Born Laser Dyes: Excited-State Intramolecular Proton Transfer (ESIPT) Emitters and Their Use in Random Lasing Studies

Thibault Pariat
  • Fonction : Auteur
Pauline M. Vérité
  • Fonction : Auteur
Denis Jacquemin
  • Fonction : Auteur
Martyna Durko
  • Fonction : Auteur
Tarek Chtouki
  • Fonction : Auteur
Lech Sznitko
  • Fonction : Auteur
Jaroslaw Mysliwiec
  • Fonction : Auteur

Résumé

A series of five excited-state intramolecular proton transfer (ESIPT) emitters based on a 2-(2-hydroxyphenyl) benzoxazole (HBO) scaffold, functionalized with a mono-or bis-(trialkylsilyl) acetylene extended spacer are presented. Investigation of their photophysical properties in solution and in the solid-state in different matrix, along with ab initio calculations gave useful insights into their optical behavior. Random lasing studies were conducted on a series of PMMA doped thin films, showing the presence of stimulated emission above the threshold of pumping energy density (ρth ≈ 0.5-2.6 mJ cm −2). In this work, the similarity of four level laser systems is discussed in light of the ESIPT photocycle.

Domaines

Chimie
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Dates et versions

hal-03102066 , version 1 (22-11-2022)

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Julien Massue, Thibault Pariat, Pauline M. Vérité, Denis Jacquemin, Martyna Durko, et al.. Natural Born Laser Dyes: Excited-State Intramolecular Proton Transfer (ESIPT) Emitters and Their Use in Random Lasing Studies. Nanomaterials, 2019, 9 (8), pp.1093. ⟨10.3390/nano9081093⟩. ⟨hal-03102066⟩
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