![]() Scanning electron microscope photograph of a textured silicon surface. This type of texturing is called "random pyramid" texture 2, and is commonly used in industry for single crystalline wafers.Ī square based pyramid which forms the surface of an appropriately textured crystalline silicon solar cell. An electron microscope photograph of a textured silicon surface is shown in the photograph below. One such pyramid is illustrated in the drawing below. The crystalline structure of silicon results in a surface made up of pyramids if the surface is appropriately aligned with respect to the internal atoms. A single crystalline substrate can betextured by etching along the faces of the crystal planes. Surface texturing can be accomplished in a number of ways.
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