Antenna size effect: The influence on energy transfer in the CdTe–pseudoisocyanine nanocomposite system

Autor:	Oleg P. Dimitriev, Irina A. Mazarchuk, Valentina Y. Morozovska, Lyubomyr I. Trischuk
Rok vydání:	2012
Předmět:	Resonant inductive coupling Aqueous solution Nanocomposite Nanocrystal Chemistry Analytical chemistry General Physics and Astronomy Molecule Quantum yield Physical and Theoretical Chemistry Fluorescence Molecular physics Cadmium telluride photovoltaics
Zdroj:	Chemical Physics Letters. 554:168-171
ISSN:	0009-2614
DOI:	10.1016/j.cplett.2012.10.044
Popis:	A 30-fold increase in the quantum yield of fluorescence of pseudoisocyanine (PIC) J-aggregates in the vicinity of CdTe nanocrystals has been revealed as a result of the resonant energy transfer from the nanocrystals to PIC J-aggregates in aqueous solutions. This enormous effect was accompanied by rather modest (∼30%) energy transfer efficiency and was assigned to rearrangement in the J-aggregate structure where the increased number of participating molecules in the J-aggregate coherence domain was calculated. No energy transfer was observed when the J-aggregate antenna size was small. The antenna size was found to be controlled by pH of the solution.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c83ca2300260c679dc2472396e756968 https://doi.org/10.1016/j.cplett.2012.10.044 Zobrazit plný text záznamu Full Text from ScienceDirect