| 摘要 |
PURPOSE:To improve both voltage-current characteristics and an energy conversion efficiency by a method wherein the element belonging to the V-group of the Periodic Table is contained in a metal paste material, and a sufficient ohmic contact is obtained between the electrode on the light-receiving surface and a diffusion layer. CONSTITUTION:An electrode 4 located on the side of a light-receiving surface is formed with an element belonging to V-group of the Periodic Table such as an Ag paste to which a very small quantity of P or P-compound, for example, is added. The added quantity of P for the Ag paste is 0.05-0.3wt%. When the Ag paste is sintered, the electrode 4 passes through a reflection preventing film 3 and it becomes susceptible to come in contact with a diffusion layer 2 by the synergistic effect of the glass powder contained in the Ag paste and P, and a sufficient ohmic contact can be obtained. As a result, the voltage- current characteristics can be improved and the energy conversion coefficiency can also be improved. |
