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Semiconductor Nanocrystals with Adjustable Hole Acceptors: Tuning the Fluorescence Intensity by Metal–Ion Binding
Author(s) -
Völker Jessica,
Zhou Xiaoyin,
Ma Xuedan,
Flessau Sandra,
Lin Hengwei,
Schmittel Michael,
Mews Alf
Publication year - 2010
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201001441
Subject(s) - nanocrystal , fluorescence , semiconductor , metal , metal ions in aqueous solution , valence (chemistry) , ion , materials science , ligand (biochemistry) , nanotechnology , photochemistry , chemistry , optoelectronics , analytical chemistry (journal) , optics , physics , organic chemistry , biochemistry , receptor , metallurgy
Functional ligands : The fluorescence intensity of semiconductor nanocrystals (NCs) strongly depends on the energy level arrangement of the nanocrystals (the valence band (VB) and conducting band (CB)) and their molecular ligands. Using a functional ligand such as 1 , where the oxidation potential can be adjusted by metal–ion complexation, the fluorescence of the nanocrystals can be used for metal ion recognition.