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We develop a back contact monocrystalline thin-film silicon solar cell using the porous silicon process. Laser processes are applied for all structuring steps. Thus no photolithography or other masking techniques are required. A single evaporation step is used to metallize the cell. Laser scribing is used for contact separation. The cell has a planar front surface, an area of 79.2 cm2 and a cell thickness...
Our monocrystalline thin-film solar cells grown on textured porous silicon are almost planar on one side and are textured with random, inverted pyramids on the other side. We compare solar cells illuminated through the textured side with solar cells that are illuminated through the almost planar side. Two-dimensional numerical modeling of the measured internal quantum efficiency shows that the textured...
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