STRUCTURE FOR FORMING SOLAR CELLS
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United States of America Patent
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Issued Date -
Jun 11, 2015
app pub date -
Jan 30, 2012
filing date -
Jan 31, 2011
priority date (Note) -
Abandoned
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Abstract
The invention relates to a structure adapted for the formation of solar cells, comprising the following successive elements, namely: a sheet (1) of textured metal with crystal grains having an average size greater than 50 μm, said sheet being adapted to form a rear face electrode of the cells; a diffusion barrier layer (2) having a thickness of between 0.2 and 2 μm, made from an electrically conductive material with crystal grains having an average size greater than 50 μm; and a doped multicrystalline silicon layer (3) having a thickness of between 30 and 100 μm, with crystal grains having an average size greater than 50 to 100 μm, in which the average diffusion length of the carriers is greater than 50 μm.
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