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Bright and Photostable Fluorescent Metal Nanocluster Supraparticles from Invert Emulsions.

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.

SUBMITTER: Zhou S

PROVIDER: S-EPMC9804586 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature

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Bright and Photostable Fluorescent Metal Nanocluster Supraparticles from Invert Emulsions.

Zhou Shaochen S Peng Bo B Duan Yanyan Y Liu Kai K Ikkala Olli O Ras Robin H A RHA

Angewandte Chemie (International ed. in English) 20220831 40

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 pr ...[more]

PMID: 36045283

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