公开(公告)号：US20120145232A1

公开(公告)日：2012-06-14

申请号：US13091015

申请日：2011-04-20

申请人： Yu Kyung KIM ,  Dong Seop Kim

发明人： Yu Kyung KIM ,  Dong Seop Kim

IPC分类号： H01L31/0224

CPC分类号： H01L31/068 ,  H01L31/022425 ,  Y02E10/547

摘要： Provided is a solar cell including: a semiconductive base layer having a first conductivity type; a semiconductive emitter layer disposed on top of the base layer and having a second conductivity type opposite to the first conductivity type; a front electrode disposed on top of the emitter layer; a passivation layer disposed under the base layer and including a contact hole exposing the base layer; and a rear electrode disposed under the passivation layer and connected with the base layer through the contact hole, wherein the rear electrode comprises a silicon (Si)-aluminum (Al) eutectic alloy powder.

摘要翻译： 提供一种太阳能电池，包括：具有第一导电类型的半导体基底层; 设置在所述基底层的顶部并且具有与所述第一导电类型相反的第二导电类型的半导体发射极层; 设置在发射极层顶部的前电极; 钝化层，设置在所述基底层下方，并且包括暴露所述基底层的接触孔; 以及设置在所述钝化层下方并通过所述接触孔与所述基底层连接的后电极，其中所述后电极包括硅（Si） - 铝（Al）共晶合金粉末。