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 nanocrystal core in the near infrared with a long lifetime (λ(max) = 905 nm, τ = 130 μs). This result demonstrates that this hybrid material has a potential application as a luminescent probe for bioimaging.
Light-harvesting antennae based on photoactive silicon nanocrystals functionalized with porphyrin chromophores / A. Fermi, M. Locritani, G. Di Carlo, M. Pizzotti, S. Caramori, Y. Yu, B.A. Korgel, G. Bergamini, P. Ceroni. - In: FARADAY DISCUSSIONS. - ISSN 1364-5498. - 185(2015), pp. 481-495.
Light-harvesting antennae based on photoactive silicon nanocrystals functionalized with porphyrin chromophores
G. Di Carlo;M. Pizzotti;
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 nanocrystal core in the near infrared with a long lifetime (λ(max) = 905 nm, τ = 130 μs). This result demonstrates that this hybrid material has a potential application as a luminescent probe for bioimaging.File | Dimensione | Formato | |
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