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Highly Emissive Organic Single-Molecule White Emitters by Engineering o-Carborane-Based Luminophores.

Deshuang TuPakkin LeongSong GuoHong YanChangsheng LuQiang Zhao
Published in: Angewandte Chemie (International ed. in English) (2017)
The development of organic single-molecule solid-state white emitters holds a great promise for advanced lighting and display applications. Highly emissive single-molecule white emitters were achieved by the design and synthesis of a series of o-carborane-based luminophores. These luminophores are able to induce multiple emissions to directly emit high-purity white light in solid state. By tuning both molecular and aggregate structures, a significantly improved white-light efficiency has been realized (absolute quantum yield 67 %), which is the highest value among the known organic single-molecule white emitters in the solid state. The fine-tuning of the packing modes from H- to J- and cross-stacking aggregates as well as intermolecular hydrogen bonds are successful in one molecular skeleton. These are crucial for highly emissive white-light emission in the solid state.
Keyphrases
  • single molecule
  • solid state
  • living cells
  • atomic force microscopy
  • light emitting
  • risk assessment
  • air pollution
  • molecular dynamics
  • heavy metals
  • artificial intelligence
  • high speed
  • sewage sludge