Formation of nanodiamond films from aqueous suspensions during spin coating

The formation of multifunctional ordered arrays of detonation diamond particles is studied during self-assembling in spin coating of films of evaporating microdroplets. It is shown that the most homogeneous layer of diamond particles on a crystalline silicon substrate forms at a rate of substrate ro...

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Published inTechnical physics Vol. 61; no. 3; pp. 401 - 408
Main Authors Lebedev-Stepanov, P. V., Molchanov, S. P., Vasil’ev, A. L., Mitrokhin, V. P., Yurasik, G. A., Aleksenskii, A. E., Dideikin, A. T.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.03.2016
Springer
Subjects
Classical and Continuum Physics
Coatings
Physical Science of Materials
Physics
Physics and Astronomy
Evaporation Time
Coating Cycle
Diamond Particle
Solution Film
Initial Solution Concentration
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Summary:The formation of multifunctional ordered arrays of detonation diamond particles is studied during self-assembling in spin coating of films of evaporating microdroplets. It is shown that the most homogeneous layer of diamond particles on a crystalline silicon substrate forms at a rate of substrate rotation of 8000 min –1 , whereas a relation between the distribution of particles and the radius is clearly detected at rates of about 2000 min –1 . As the rate of substrate rotation increases from 2500 to 8000 min –1 , the density of the coating of a silicon substrate with diamond nanoparticles decreases approximately threefold. A model is proposed to estimate the increase in the number of individual diamond “points” with the substrate rotation frequency.
ISSN:1063-7842
1090-6525
DOI:10.1134/S1063784216030142