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General principles in formation of monolayer colloidal crystals using the moving meniscus method

机译:使用移动弯月面法形成单层胶体晶体的一般原理

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Factors affecting the formation of two-dimensional periodic structure from the particles of hydrosol disperse phase on the surface of dielectric substrate using the moving meniscus method are analyzed. The analytical model and its numerical realization for calculating the deposition of nanoparticle from bulk hydrosol onto a planar substrate by the Brownian dynamics are represented. Van der Waals, elastic, gravitational, dissipative, and stochastic forces, as well as the action of capillary forces and convective transfer, are taken into account in the model. The influence of various parameters of the disperse system on the degree of imperfection of forming crystalline structure is studied. The dominant factors of structurization during the use of this technique are revealed, and a key role of convective transfer is demonstrated.
机译:分析了使用移动弯月面法从介电质表面上的水溶胶分散相颗粒形成二维周期性结构的因素。给出了通过布朗动力学计算纳米颗粒从块状水溶胶沉积到平面基底上的解析模型及其数值实现。在模型中考虑了范德华力,弹性力,引力,耗散力和随机力以及毛细作用力和对流传递。研究了分散体系中各种参数对形成晶体结构不完善程度的影响。揭示了该技术使用过程中结构化的主要因素,并证明了对流转移的关键作用。

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