Influence of Dithiols on Fluorescence Blinking of Colloidal Quantum Dots InP@ZnS


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Abstract

The influence of 1,6-hexanedithiol as an additional short-chain stabilizing ligand on fluorescence blinking of semiconductor colloidal quantum dots InP@ZnS has been studied using the analysis of the fluorescence decay curves. The optimum proportion of 1,6-hexanedithiol in the mixture has been determined. The influence of the thickness of the ZnS shells and the diameter of the InP core has been also studied. Correlation of these dependences with the analogous dependences for the luminescence quantum yield is observed.

About the authors

V. Yu. Gak

Institute of Problems of Chemical Physics, Russian Academy of Sciences; Moscow Institute of Physics and Technology (State University)

Author for correspondence.
Email: gak@phystech.edu
Russian Federation, Chernogolovka, Moscow oblast, 142432; Dolgoprudnyi, Moscow oblast, 141701

M. G. Spirin

Institute of Problems of Chemical Physics, Russian Academy of Sciences; Moscow Institute of Physics and Technology (State University)

Email: gak@phystech.edu
Russian Federation, Chernogolovka, Moscow oblast, 142432; Dolgoprudnyi, Moscow oblast, 141701

S. B. Brichkin

Institute of Problems of Chemical Physics, Russian Academy of Sciences; Moscow Institute of Physics and Technology (State University)

Email: gak@phystech.edu
Russian Federation, Chernogolovka, Moscow oblast, 142432; Dolgoprudnyi, Moscow oblast, 141701

V. F. Razumov

Institute of Problems of Chemical Physics, Russian Academy of Sciences; Moscow Institute of Physics and Technology (State University)

Email: gak@phystech.edu
Russian Federation, Chernogolovka, Moscow oblast, 142432; Dolgoprudnyi, Moscow oblast, 141701

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