Solar cell with trench through pn junction

Details Solar cell with trench through pn junction Solar cell with trench through pn junction

1989-06-30

1991-01-29

Mintel, William

Batteries: thermoelectric and photoelectric

Thermoelectric

Radiation pyrometer

357 2, 357 55, 136255, 437 65, 437907, 437908, H01L 2714

Patent

active

049890590

ABSTRACT:
A solar cell fabrication procedure is described in which a trench is cut in the substrate so as to electrically isolate front and back regions of a flat solar cell. The trench is preferably cut around the perimeter of the rear side of the cell. The trench is preferably formed by an excimer laser which may be used to ablate a trench without diffusing conductive material deeper into the cell.

REFERENCES:
patent: 3411952 (1968-11-01), Ross et al.
patent: 4046594 (1977-09-01), Tarui et al.
patent: 4095329 (1978-06-01), Ravi
patent: 4128732 (1978-12-01), Kaplow et al.
patent: 4335503 (1982-06-01), Evans, Jr. et al.
patent: 4608451 (1986-08-01), Landis

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