Self-assembly of charged CdTe nanoparticles |
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| Authors: | D N Voylov L M Nikolenko D Yu Nikolenko N A Voylova E M Olsen V F Razumov |
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| Institution: | 1.Joint Analytical Center, Scientific Center in Chernogolovka,Russian Academy of Sciences,Chernogolovka, Moscow region,Russia;2.Laboratory of Physical and Chemical Investigations, Institute of Problems of Chemical Physics,Russian Academy of Sciences,Chernogolovka, Moscow region,Russia;3.Laboratory of Photonics of Nanosized Structures, Institute of Problems of Chemical Physics,Russian Academy of Sciences,Chernogolovka, Moscow region,Russia;4.Department of Physics and Astronomy,University of Tennessee,Knoxville,USA |
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| Abstract: | We show a method of the organization of charged CdTe nanoparticles which allows the generation of a self-assembled monolayer of above 10.000 μm2 in a time of about 90 s. The analysis of adsorption kinetics of particles on a surface shows that it is well described by the Langmuir isotherm. We have found that thermal and electrical conductivity of a substrate play an important role. Nevertheless, deficiency of a substrate does not affect the adsorption kinetic. The structure of a formed monolayer essentially depends on pH and, as a consequence, on the charge of the particles. This method can be effective for the production of a CdTe nanoparticle monolayer with well controlled area and a degree of filling on a surface. |
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