Title:
HETEROJUNCTION BACK CONTACT CELL AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2024/021708
Kind Code:
A1
Abstract:
Disclosed in the present invention are a heterojunction back contact cell and a manufacturing method therefor. The heterojunction back contact cell comprises a substrate, a first intrinsic amorphous silicon passivation layer, an anti-reflection layer, a second intrinsic amorphous silicon passivation layer, a doping layer, a transparent conductive layer, and first intrinsic amorphous silicon passivation isolation layers. The first intrinsic amorphous silicon passivation layer and the anti-reflection layer are sequentially deposited on a light-facing surface of the substrate; the second intrinsic amorphous silicon passivation layer and the doping layer are sequentially deposited on the opposite surface of the substrate; the doping layer comprises a plurality of P regions and N regions which are alternately arranged; the transparent conductive layer is deposited on the P regions and the N regions; any adjacent P region and N region are separated to form a first isolation groove; the first intrinsic amorphous silicon passivation isolation layers are in one-to-one correspondence to the first isolation grooves; and the corresponding first isolation grooves are filled with the first intrinsic amorphous silicon passivation isolation layers.
Inventors:
LUO LIZHEN (CN)
PENG WENBO (CN)
XIAO PING (CN)
ZHAO DONGMING (CN)
LI XIAOLEI (CN)
GAO HU (CN)
SHI YUE (CN)
GE HENG (CN)
PENG WENBO (CN)
XIAO PING (CN)
ZHAO DONGMING (CN)
LI XIAOLEI (CN)
GAO HU (CN)
SHI YUE (CN)
GE HENG (CN)
Application Number:
PCT/CN2023/090091
Publication Date:
February 01, 2024
Filing Date:
April 23, 2023
Export Citation:
Assignee:
HUANENG CLEAN ENERGY RES INST (CN)
HUANENG DALI WIND POWER CO LTD ERYUAN BRANCH (CN)
HUANENG DALI WIND POWER CO LTD ERYUAN BRANCH (CN)
International Classes:
H01L31/0747; H01L31/0216; H01L31/18; H01L31/20
Foreign References:
| CN115000226A | 2022-09-02 | |||
| CN105637593A | 2016-06-01 | |||
| CN108075017A | 2018-05-25 | |||
| CN107534064A | 2018-01-02 | |||
| CN103618021A | 2014-03-05 | |||
| US20150136227A1 | 2015-05-21 |
Attorney, Agent or Firm:
TSINGYIHUA INTELLECTUAL PROPERTY LLC (CN)
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