OPTICAL METHOD AND DEVICE FOR TEXTURE QUANTIFICATION OF PHOTOVOLTAIC CELLS

摘要

The invention relates to an optical method and device for the texture quantification of photovoltaic cells. The inventive method and device are suitable for texture morphologies that are characterised by the development of geometric patterns which are correlated on the surface of the substrate supporting the photovoltaic cell. The aforementioned morphologies can be formed using different methods, including chemical attack of monocrystalline Si, with both raised and inverted pyramids. The inventive method can also be used to study other degrees of texture developed in multicrystalline Si as well as those present in polycrystalline silicon cells deposited on substrates which have been pre-textured under the aforementioned conditions. The invention can also be extended to other materials having similar texture patterns.