| 摘要 |
PROBLEM TO BE SOLVED: To realize a solar battery of low cost, by reducing semiconductor material cost and forming a PN junction by a simple method. SOLUTION: An N-type silicon coating film 3 is printed and formed on a glass board 1 and made fine. A P-type silicon coating film 4 is printed and formed on other glass board 2 and made fine. The glass boards 1, 2 on which the coating films 3, 4 are formed are so unified in a body that the P-type and the N-type silicon coating films face with each other. By pressing the unified structure simultaneously with heating, a PN junction is formed, and a solar battery 10 is obtained. |
