Silicon nanocrystals functionalized with tetraphenylporphyrin Zn(II) chromophores at the periphery perform as light harvesting antennae: excitation of the porphyrin units in the visible spectral region yields sensitized emission of the silicon nanocrystals core in the near infrared with long lifetime (λmax=905 nm, τ=130 μs). This result demonstrates that this hybrid material has potential application as a luminescent probe for bioimaging.
Light-harvesting antennae based on photoactive silicon nanocrystals functionalized with porphyrin chromophores
FERMI, ANDREA;LOCRITANI, MIRKO;BERGAMINI, GIACOMO;CERONI, PAOLA
2015
Abstract
Silicon nanocrystals functionalized with tetraphenylporphyrin Zn(II) chromophores at the periphery perform as light harvesting antennae: excitation of the porphyrin units in the visible spectral region yields sensitized emission of the silicon nanocrystals core in the near infrared with long lifetime (λmax=905 nm, τ=130 μs). This result demonstrates that this hybrid material has potential application as a luminescent probe for bioimaging.File in questo prodotto:
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