Multi-photon properties in various condensed phases of dendritic chromophores derived from carbazole and indenoquioxaline units: Synthesis and characterization

Tzu Chau Lin, Wei Chien, Shu Wen Dai, Hao Wu Lin, Yueh Ching Liu

Research output: Contribution to journalArticlepeer-review

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Abstract

We have used functionalized carbazoles and indenoquonoxalines as the main building units and enthynyl groups as the π-linkages to construct two novel dendritic fluorophores and studied their degenerate multi-photon absorption properties in both the solution phase and the neat-film state within femtosecond and nanosecond regions. In our experiments, these model compounds are found to manifest strong and widely dispersed two-photon absorption as well as effective power-limiting properties against ultra-short laser pulses in the near-IR region. In addition, both chromophores exhibit medium to strong three-photon-induced fluorescence, indicating such scaffold may serve as a reference structural motif for the development of three-photon materials.

Original languageEnglish
Pages (from-to)140-150
Number of pages11
JournalDyes and Pigments
Volume168
DOIs
StatePublished - Sep 2019

Keywords

  • Carbazole
  • Indenoqunoxaline
  • Sonogashira reaction
  • Three-photon absorption
  • Two-photon absorption

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