Title:
SOLAR CELL LOCAL-AREA DOPING METHOD
Document Type and Number:
WIPO Patent Application WO/2015/192739
Kind Code:
A1
Abstract:
Disclosed in the present invention is a solar cell local-area doping method. The method comprises the steps: (a) molecular films with hydrophilic groups and/or hydrophobic groups are formed on the surface of a substrate; (b) doping sources are provided on the surface of the substrate said in the step (a), and the doping sources are distributed on the patterns formed by the molecular films; and (c) the thermal diffusion is conducted to the obtained substrate in the step (b), and therefore the substrate of the local-area doping solar cell is formed. According to the method in the present invention, the local-area doping structures with different patterns and sizes can be obtained, and the method is particularly suitable for building local-area emitter junctions and high-low surface fields of the solar cell.
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Inventors:
SHENG YUN (CN)
Application Number:
PCT/CN2015/081326
Publication Date:
December 23, 2015
Filing Date:
June 12, 2015
Export Citation:
Assignee:
CHANGZHOU TRINA SOLAR ENERGY (CN)
International Classes:
H01L31/18; H01L21/228
Foreign References:
| CN102779905A | 2012-11-14 | |||
| CN102201498A | 2011-09-28 | |||
| CN102867884A | 2013-01-09 | |||
| US20140049923A1 | 2014-02-20 |
Attorney, Agent or Firm:
SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC (CN)
上海专利商标事务所有限公司 (CN)
上海专利商标事务所有限公司 (CN)
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