Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 143, Issue 1, Pages 382-389Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jacs.0c11060
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Funding
- Royal Society Wolfson Merit Award [WM130055]
- Monash-Warwick Alliance
- European Research Council [TUSUPO 647106]
- Royal Society
- Leverhulme Trust [LT150052]
- Marie Sklodowska-Curie action (TSPBNTM)
- EPSRC through the EPSRC Centre for Doctoral Training in Molecular Analytical Science [EP/L015307/1]
- EPSRC [EP/N010825/1] Funding Source: UKRI
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This study presents a strategy for constructing efficient artificial light-harvesting systems based on supramolecular peptide nanotubes, achieving high energy transfer efficiency and stability, as well as versatile spectral emission capabilities, including outputting white light.
Artificial light-harvesting systems in aqueous media which mimic nature are of significant importance; however, they are often restrained by the solubility and the undesired aggregation-caused quenching effect of the hydrophobic chromophores. Here, we report a generalized strategy toward the construction of efficient artificial light-harvesting systems based on supramolecular peptide nanotubes in water. By molecularly aligning the hydrophobic chromophores along the nanotubes in a slipped manner, an artificial light-harvesting system with a two-step sequential Forster resonance energy transfer process is successfully fabricated, showing an energy transfer efficiency up to 95% and a remarkably high fluorescence quantum yield of 30%, along with high stability. Furthermore, the spectral emission could be continuously tuned from blue through green to orange, as well as outputted as a white light continuum with a fluorescence quantum yield of 29.9%. Our findings provide a versatile approach of designing efficient artificial light-harvesting systems and constructing highly emissive organic materials in aqueous media.
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