Döner (Spin) Kaplama ile İki Boyutlu Polimerik Nanokompozitlerin Geniş Alanlı Üretimleri

Abstract

The aim of this study is to obtain high crystal quality colloidal templates using spin-coating technique and to determine the production conditions of nanocomposites produced from these templates. For this purpose, the glass surfaces were coated by spin- coating technique on various surfaces using homogeneously dispersed silica colloids in the prepared acrylate monomer. With this coating technique based on centrifugal forces, and following polymerization step, high quality nanoarrays of colloidal crystals in two dimensions were successfully prepared. In ethanol, the dilute silica nanospheres were removed and then dissolved with ethoxylated trimethylolpropane triacrylate monomer having a viscosity of 60 cps to <20% volumetric fractions. This prepared colloidal suspension-monomer mixture was coated on glass surfaces in a very uniform manner. The thickness of the film can only be controlled by changing the rotation speed and time of spin coating. Selective removal of the polymer matrix and silica spheres was achieved by reactive ion abrasive and hydrofluoric acid treatments, yielding large area colloidal crystals and macroporous polymers, respectively. The normal transmission spectra in the visible and near infrared regions and the apparent peaks of Bragg diffraction from these two-dimensional nanostructures were determined by graphs. Based on optical disc-scale coating, this technique is compatible with standard semiconductor microfabrications and optical biosensor production. Crystallization application based on centrifugal force of spin coating process can be easily used in technological applications based on coating techniques.