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; Di Carlo, Gabriele; Pizzotti, Maddalena; Caramori, Stefano; Yu, Yixuan; Korgel, Brian A.; Bergamini, Giacomo; Ceroni, Paola. - In: FARADAY DISCUSSIONS. - ISSN 1364-5498. - STAMPA. - 185:(2015), pp. 481-495. [10.1039/C5FD00098J]
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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.