| 摘要 |
PURPOSE:To simplify a sealing structure, to reduce a cost and to stabilize it for a long period by forming curable resin of polymer containing acryl group or acryl group having a substituents at an alpha-position or a beta-position, and forming thermoplastic resin of resin composition of styrene.acrylic series polymer. CONSTITUTION:POCl3 is vapor diffused in a p-type Si wafer 1a thereby to form a p-n junction. Aluminum is deposited on an entire surface of a p-type layer side, silver paste is sintered at an n-type layer 1b side thereby to provide a surface electrode 3 as a solar cell board 4. For example an acrylic ester oilgomer having number-average molecular weight of 400, and a styrene acrylic resin comprising styrene, methyl methacrylate, buthyl methacrylate, and acrylic acid having number-average molecular weight of 10000 are dissolved in methly ethyl ketone, to prepare uniform solution. The board 3 is dipped in the solution and pulled up, then dried, and irradiated with a high pressure mercury lamp, and a curable resin film 5 is provided on the entire surface. |
