Spin coating

 

A process to form thin films of material by placing a solution of the material on the center of a disc and spinning very rapidly allowing the material to spread out evenly and thereby forming a thin film.

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A method to obtain coatings with defined thickness in a huge range (from several nanometers up to millimetres). The coating material is dissolved in a solvent and dropped on the surface which is mounted on a spinning plate. The solvent evaporates and a homogeneous layer is left on the surface. The coating thickness is adjusted by the spin speed, the spin time and the viscosity of the liquid.

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