Title:
TANDEM SOLAR CELL MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2019/182316
Kind Code:
A1
Abstract:
According to the present invention relating to a tandem solar cell manufacturing method using a method for etching a crystalline silicon substrate, a solar cell may be obtained which does not have a pyramid-shaped defect on the surface of a substrate, inhibits the generation of a shunt through the substrate having excellent surface roughness properties, and may secure fill factor properties, the solar cell being capable of being obtained through the tandem solar cell manufacturing method which comprises the steps of: preparing a crystalline silicon substrate; isotropically etching the substrate; removing saw damage on the surface of the substrate by anisotropically etching the isotropically etched substrate; positioning a second solar cell on the saw damage-removed substrate; positioning a middle layer on the second solar cell; and positioning a first solar cell on the middle layer.
Inventors:
LEE YU JIN (KR)
KIM SEONGTAK (KR)
AHN SEH-WON (KR)
CHUNG JIN-WON (KR)
KIM SEONGTAK (KR)
AHN SEH-WON (KR)
CHUNG JIN-WON (KR)
Application Number:
PCT/KR2019/003147
Publication Date:
September 26, 2019
Filing Date:
March 18, 2019
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H01L31/18; H01L31/0376; H01L31/0687; H01L31/0725
Domestic Patent References:
| WO2013098955A1 | 2013-07-04 |
Foreign References:
| US20120015470A1 | 2012-01-19 | |||
| KR20180007585A | 2018-01-23 | |||
| KR20120104441A | 2012-09-20 | |||
| KR20140014065A | 2014-02-05 |
Other References:
See also references of EP 3770978A4
Attorney, Agent or Firm:
DAE-A INTELLECTUAL PROPERTY CONSULTING (KR)
Download PDF:
Previous Patent: COLORED CURABLE RESIN COMPOSITION, COLOR FILTER, AND DISPLAY DEVICE
Next Patent: LEVEL GAUGE FOR LIQUID CARRIER
Next Patent: LEVEL GAUGE FOR LIQUID CARRIER