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    • 2. 发明申请
    • SOLAR CELL AND FABRICATION METHOD THEREOF
    • 太阳能电池及其制造方法
    • US20110017258A1
    • 2011-01-27
    • US12740327
    • 2008-07-11
    • Il-Hyoung JungJu-Hwan YunJong-Hwan Kim
    • Il-Hyoung JungJu-Hwan YunJong-Hwan Kim
    • H01L31/042H01L21/00
    • H01L31/022433H01L31/18Y02E10/50
    • A back contact solar cell comprises a first dopant diffusion part and a second dopant diffusion part formed on a rear surface of an n-type semiconductor wafer with a predetermined distance formed therebetween by a diffusion prevention part for ensuring no contact with each other and suppressing the diffusion of dopant; and an electrode configured of an anode and a cathode each connected to the first dopant diffusion part and the second dopant diffusion part. According to the present invention, the back contact solar cell is capable of preventing light loss and improving its efficiency by forming an electrode to be positioned on a rear surface of a semiconductor wafer through a simple process and by simultaneously implementing an anode electrode and a cathode electrode on the semiconductor wafer without having a grid electrode restricting incidence of sunlight.
    • 背接触太阳能电池包括第一掺杂剂扩散部分和第二掺杂剂扩散部分,其形成在n型半导体晶片的后表面上,其间通过防止扩散部分形成预定距离,以确保彼此不接触并抑制 掺杂剂的扩散; 以及由阳极和阴极构成的电极,每个连接到第一掺杂剂扩散部分和第二掺杂剂扩散部分。 根据本发明,背接触太阳能电池能够通过简单的工艺形成要位于半导体晶片的后表面上的电极并同时实现阳极电极和阴极,从而防止光损失并提高其效率 电极,而不具有限制阳光入射的栅电极。