Photophysical properties of self-aggregated porphyrin: semiconductor nanoassemblies

Autor: E. Zenkevich, T. Blaudeck, M. Abdel-Mottaleb, F. Cichos, A. Shulga, C. von Borczyskowski
Jazyk: angličtina
Rok vydání: 2006
Předmět:
Zdroj: International Journal of Photoenergy, Vol 2006 (2006)
Druh dokumentu: article
ISSN: 1110-662X
1687-529X
DOI: 10.1155/IJP/2006/90242
Popis: Colloidal semiconductor nanocrystals from CdSe show photoluminescence quenching via titration with porphyrin derivatives. This quenching is an indication of the formation of nanoassemblies via surface attachment of pyridyl linker groups. As a consequence of the complex formation, dynamic and/or static interactions between QD and porphyrins are induced. Quenching efficiencies depend critically on sample stability, temperature, solvent, and electronic properties of the porphyrins. In order to optimize photoinduced dynamic processes these parameters have to be under control.
Databáze: Directory of Open Access Journals
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