| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce costs for electrode formation while including facility costs by providing mass-production technology for forming positive and negative electrodes in a granulated spherical semiconductor device. SOLUTION: A contact hole 12 for positive electrode and a contact hole 13 for negative electrode are formed on the surface of a spherical semiconductor device 11 for constituting a solar battery cell provided with a pn bond 7 and a spherical crystal 2 of a p-type semiconductor, and this spherical semiconductor device 11 is immersed in a plating liquid 23. In the state of radiating no light, nonelectrolytic plating treatment is performed and a positive electrode 15 coupled to the p-type semiconductor of the spherical crystal 2 is formed inside the contact hole 12 for positive electrode. Next, the spherical semiconductor device 11 is immersed in the other plating liquid and while generating a photovoltaic power by radiating white light, the negative electrode is formed in a contact hole 13 for negative electrode by nonelectrolytic plating treatment.</p> |
