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Hidden Blue Emission in [60]Fullerene Stemming from Weak π–π Aggregation
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DOI：10.1016/j.carbon.2026.121649.png)
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Abstract
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• C60 aggregates show unconventional, broad, long-lived UV/blue emission in solution • Blue emission of ∼10 ns occurs at ≥ 2 μM concentration threshold in ethyl acetate • C60 nanoaggregates (∼2 nm) are responsible for unconventional blue fluorescence • Blue/red ratio depends on excitation wavelength, solvent polarity and additive (O2) • MD and DFT justify new aggregation-induced excitonic states that emit blue light
Keywords:
[60]fullerene
unconventional fluorescence
dual fluorescence
aggregation-induced emission
time-resolved fluorescence anisotropy
fluorophore size
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