Method for producing single crystal silicon solar cell and single crystal silicon solar cell

摘要

There is disclosed a method for producing a single crystal silicon solar cell comprising the steps of: implanting hydrogen ions or rare gas ions into a single crystal silicon substrate through an ion implanting surface thereof to form an ion implanted layer in the single crystal silicon substrate; closely contacting the single crystal silicon substrate and a transparent insulator substrate with each other via a transparent adhesive while using the ion implanting surface as a bonding surface; curing the transparent adhesive; applying an impact to the ion implanted layer to mechanically delaminate the single crystal silicon substrate thereat to leave a single crystal silicon layer; forming a plurality of diffusion regions having a second conductivity type at the delaminated surface side of the single crystal silicon layer, in a manner that a plurality of first conductivity-type regions and a plurality of second conductivity-type regions are present at the delaminated surface of the single crystal silicon layer; forming pluralities of individual electrodes on the pluralities of first and second conductivity-type regions of the single crystal silicon layer, respectively; and forming collector electrodes for the individual electrodes, respectively. There can be provided a single crystal silicon solar cell as a see-through type solar cell, including a thin-film light conversion layer made of single crystal silicon having a higher crystallinity.