Self-assembly of charged CdTe nanoparticles

Here we show a method of the organization of charged CdTe nanoparticles which allows the generation of a self-assembled monolayer of above $10.000\,\mu$m$^2$ 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 doesn't affect the adsorption kinetic. The structure of a formed monolayer essentially depends on pH and as a consequence on the particles' charge. This method can be effective for the production of a CdTe nanoparticle's monolayer with well controlled area and a degree of filling on a surface.