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Solar cell manufacturing method, involves providing semiconductor substrate with pn-junction formed in it and removing dielectric layer in local areas by ultra short pulse laser with laser pulse duration of less than hundred picoseconds
Solar cell manufacturing method, involves providing semiconductor substrate with pn-junction formed in it and removing dielectric layer in local areas by ultra short pulse laser with laser pulse duration of less than hundred picoseconds
The method involves providing a semiconductor substrate with a pn-junction formed in it. The dielectric layer is removed in local areas by an ultra short pulse laser with a laser pulse duration of less than 100 picoseconds, particularly less than 50 picoseconds and stronger prefers less than 20 picoseconds.
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