Method for manufacturing back contact solar cell, involves diffusing second type dopant containing paste into solar cell substrate in common-emitter type impurity regions by sintering second type dopant containing paste

摘要

The method involves diffusing (10) the first type dopant doped in a volume with the same dopant type solar cell substrate (50) for the purpose of forming front side panel (52) and rear side panel (54). The masking layer (62) is formed (16) on the back of the solar cell substrate. The second type dopant containing paste (72) is formed (20) on the back of the solar cell substrate. The second type dopant containing paste is diffused (21) into solar cell substrate in common-emitter type impurity regions (66) by sintering second type dopant containing the paste.