Solar cell and method for producing the same
US7294779B2 · kind B2 · utility
15Cited by
6References
42Claims
0Family size
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Key dates
| Filing date | Jan 30, 2002 |
| Grant date | Nov 13, 2007 |
| Priority date | — |
| Expiry date | Apr 4, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/50
Abstract
A solar cell 1 has a number of grooves 2 formed in parallel with each other on a first main surface 24a of a silicon single crystal substrate. An electrode 6 is formed on the inner side face of each groove 2 on one side. Each groove 2 is formed in the direction in disagreement with the <110> direction on the first main surface 24a. This raises mechanical strength of the solar cell 1. The direction of formation of the grooves 2 preferably crosses the <110> direction nearest to the direction of formation at an angle of 4°˜45° on the acute angle side.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.