Solar cell unit and manufacturing method thereof

Solar cell unit and manufacturing method thereof

  • CN 103,296,103 A
  • Filed: 02/29/2012
  • Published: 09/11/2013
  • Est. Priority Date: 02/29/2012
  • Status: Active Application
First Claim
Patent Images

1. solar battery cell is by n type monocrystalline substrate;

  • Be formed at the p-type diffusion layer on the face of described monocrystalline substrate;

    Be formed at the n type diffusion layer on another face of described monocrystalline substrate;

    The one or more sensitive surface gate electrodes and the busbar electrode that on described p-type diffusion layer, form partly;

    And the one or more sensitive surface gate electrodes that form partly on described n type diffusion layer and busbar electrode constitute,Wherein,Be formed with a plurality of high concentration p-type diffusion zones and be positioned at low concentration p-type diffusion zone between these high concentration p-type diffusion zones at described p-type diffusion layer,Be formed with a plurality of high concentration n type diffusion zones and be positioned at low concentration n type diffusion zone between these high concentrations n type diffusion zone at described n type diffusion layer,Described sensitive surface gate electrode and busbar electrode form in abutting connection with described high concentration p-type diffusion zone and high concentration n type diffusion zone,The surface generating capacity is conversion efficiency more than 18%,Be formed with conversion efficiency in another face of n type diffusion layer and be more than 93% of conversion efficiency in the face that is formed with the p-type diffusion layer.

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