| 摘要 |
<p>The present invention provides a conductive paste which enables the production of a solar cell that exhibits excellent solderability and excellent mechanical strength, while having good insulation between a semiconductor substrate and a through electrode, thereby achieving improved power generation efficiency. A conductive paste of the present invention contains a conductive powder such as Ag, 5-15% by weight of a glass component that is composed of a vanadium (V) oxide material mainly composed of vanadium (V) oxide, an organic vehicle and the like. The vanadium (V) oxide material is preferably one that is crystallized by a heat treatment such as a V2O5-BaO-ZnO material or a V2O5-Fe2O3-BaO material. A through electrode (6) that is formed of a via part (6a) and a bus bar part (6b) is formed using the conductive paste. The conductive paste of the present invention is suitable for the formation of a through electrode in a solar cell, wherein a p-type semiconductor layer (1a) and an n-type semiconductor layer (1b) are in contact with a through electrode (6), among solar cells having an MWT structure.</p> |
