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Distance‐Dependent Electron Transfer in Au/Spacer/Q‐CdSe Assemblies
Author(s) -
Bakkers Erik P. A. M.,
Marsman Albert W.,
Jenneskens Leonardus W.,
Vanmaekelbergh Daniël
Publication year - 2000
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 - 10.1002/1521-3773(20000703)39:13<2297::aid-anie2297>3.0.co;2-1
Subject(s) - quantum dot , electrode , electron transfer , nanocrystal , molecule , electron , colloid , materials science , electron transport chain , crystallography , chemistry , analytical chemistry (journal) , nanotechnology , physics , biochemistry , organic chemistry , chromatography , quantum mechanics
CdSe quantum dots , in the form of colloidal nanocrystals, are bound to the surface of a gold electrode by bisulfide spacer molecules. The distance dependance of the electron transfer rate between the CdSe and the electrode was investigated by a time‐resolved optoelectronic method and related to the length r of the spacer molecule 1 – 3 [Eq. (1)]. For β , a value of 0.50±0.05 Å −1 was found. k = k 0 e − β r (1)