Bright and Photostable Fluorescent Metal Nanocluster Supraparticles from Invert Emulsions

Shaochen Zhou, Bo Peng*, Yanyan Duan, Kai Liu, Olli Ikkala, Robin H.A. Ras

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

15 Citations (Scopus)
115 Downloads (Pure)

Abstract

Fluorescent supraparticles of gold, silver and copper nanoclusters are synthesized by simply drying of invert emulsions, resulting in a dozen-fold increase in photoluminescence quantum yield (up to ≈80 %) and a significant improvement in photostability. The inhibition of the ligand twisting during the intramolecular charge transfer is found to be responsible for the enhancement, especially for the gold nanocluster supraparticles. This research provides a general, flexible, and easy method for producing highly luminescent and photostable metal nanocluster-based materials that promise practical applications in white-light-emitting diodes.

Original languageEnglish
Article numbere202210808
Number of pages6
JournalAngewandte Chemie - International Edition
Volume61
Issue number40
Early online date31 Aug 2022
DOIs
Publication statusPublished - 4 Oct 2022
MoE publication typeA1 Journal article-refereed

Keywords

  • Light-Emitting Diode
  • Metal Nanoclusters
  • Photoluminescence
  • Photostability
  • Supraparticles

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