Emergence of practical fluorescence in a confined space of nanoporous silica: Significantly enhanced quantum yields of a conjugated molecule

Kosei Hayashi, Yasuto Fujimaki, Kentaro Mishiba, Hiroto Watanabe, Hiroaki Imai

Research output: Contribution to journalArticlepeer-review

Abstract

The fluorescence of benzanthrone, which is a conjugated molecule bearing a carbonyl group, is activated by confinement in a pore with a diameter close to the molecular size. An intense emission originating from the aromatic character π-π∗ transition is achieved through suppression of the nonradiative n-π∗ transition by strong hydrogen bonding between carbonyl groups and silanol groups with a micropore-filling effect in the nanospace.

Original languageEnglish
Pages (from-to)13150-13153
Number of pages4
JournalChemical Communications
Volume57
Issue number97
DOIs
Publication statusPublished - 2021 Dec 18

ASJC Scopus subject areas

  • Catalysis
  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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