Invention Grant
- Patent Title: Edge deletion of thin-layer solar modules by etching
- Patent Title (中): 通过蚀刻边缘删除薄层太阳能电池组件
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Application No.: US13061274Application Date: 2009-08-05
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Publication No.: US08497215B2Publication Date: 2013-07-30
- Inventor: Oliver Doll , Ingo Koehler
- Applicant: Oliver Doll , Ingo Koehler
- Applicant Address: DE Darmstadt
- Assignee: Merck Patent GmbH
- Current Assignee: Merck Patent GmbH
- Current Assignee Address: DE Darmstadt
- Agency: Millen, White, Zelano & Branigan, P.C.
- Priority: EP08015378 20080901
- International Application: PCT/EP2009/005653 WO 20090805
- International Announcement: WO2010/022849 WO 20100304
- Main IPC: H01L21/302
- IPC: H01L21/302 ; H01L21/461 ; C03C25/68 ; C09K13/00
Abstract:
The present invention relates to a method for the wet-chemical edge deletion of solar cells. An etching paste is applied to the edge of a solar cell substrate surface and after the reaction is complete, the paste residue is removed. Optionally, the substrate surface is cleaned and dried. The etching paste comprises 85% H3PO4, NH4HF2 and 65% HNO3 in a ratio in the range from 7:1:1.5 to 10:1:3.5, based on the weight.
Public/Granted literature
- US20110159636A1 EDGE DELETION OF THIN-LAYER SOLAR MODULES BY ETCHING Public/Granted day:2011-06-30
Information query
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