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Issue 38, 2015
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Quantum confinement-tunable intersystem crossing and the triplet state lifetime of cationic porphyrin–CdTe quantum dot nano-assemblies

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Abstract

Here, we report a ground-state interaction between the positively charged cationic porphyrin and the negatively charged carboxylate groups of the thiol ligands on the surface of CdTe quantum dots (QDs), leading to the formation of a stable nanoassembly between the two components. Our time-resolved data clearly demonstrate that we can dramatically tune the intersystem crossing (ISC) and the triplet state lifetime of porphyrin by changing the size of the QDs in the nanoassembly.

Graphical abstract: Quantum confinement-tunable intersystem crossing and the triplet state lifetime of cationic porphyrin–CdTe quantum dot nano-assemblies

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Publication details

The article was received on 19 Feb 2015, accepted on 27 Mar 2015 and first published on 27 Mar 2015


Article type: Communication
DOI: 10.1039/C5CC01542A
Chem. Commun., 2015,51, 8010-8013
  • Open access: Creative Commons BY-NC license
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    Quantum confinement-tunable intersystem crossing and the triplet state lifetime of cationic porphyrin–CdTe quantum dot nano-assemblies

    G. H. Ahmed, S. M. Aly, A. Usman, M. S. Eita, V. A. Melnikov and O. F. Mohammed, Chem. Commun., 2015, 51, 8010
    DOI: 10.1039/C5CC01542A

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