| 摘要 |
[Problem] To obtain an electroconductive paste which contains no lead and is usable as an electrode to be formed in a semiconductor-silicon solar cell. [Solution] An electroconductive paste for solar cells in which a semiconductor-silicon substrate is used, characterized by containing a glass frit which has a composition that contains substantially no lead component and that comprises, in terms of mass%, 1-20% SiO2, 5-30% B2O3, 0-10% Al2O3, 5-35% ZnO, 5-30% RO (sum of one or more compounds selected from the group consisting of MgO, CaO, SrO, and BaO), 0.1-6% R2O (sum of one or more compounds selected from the group consisting of Li2O, Na2O, and K2O), and 10-60% Bi2O3. |
