| abstract |
Disclosed are a paste composition, a method for producing a paste composition, a photovoltaic cell, and a method for producing a photovoltaic cell contact portion. The paste composition may include a conductive metal component such as aluminum, a phosphate glass, a phosphorus compound such as an alkyl phosphate, and a vehicle. This contact portion can be formed on the passivation layer on the silicon wafer by applying the paste to the passivation layer and baking the paste. During firing, the metal component can be in electrical contact with the silicon substrate by firing through the passivation layer. [Selection] Figure 1 |