| 摘要 |
PROBLEM TO BE SOLVED: To provide a paste composition which is to be used for forming an electrode on the backside of a silicon semiconductor substrate, and which makes possible to increase an open-circuit voltage, and to suppress the reduction in current density; and a solar battery element including a backside electrode which is formed by use of such a composition.SOLUTION: A paste composition is to be used for forming an electrode on the backside of a silicon semiconductor substrate which a crystalline silicon solar battery includes. The paste composition comprises: aluminum powder; Al-B alloy powder; glass powder; and an organic vehicle. In the paste composition, the concentration of the boron is 0.005-0.05 mass%. |
