Method of fabricating photovoltaic cells

Details Method of fabricating photovoltaic cells Method of fabricating photovoltaic cells

1979-07-02

1981-03-10

Rutledge, L. Dewayne

Metal treatment

Compositions

Heat treating

136255, 148175, 148187, 357 30, 357 55, H01L 3106, H01L 2120, H01L 21223

Patent

active

042552125

ABSTRACT:
A solar power system including a movable platform for tracking the sun, a radiation concentrator, and a plurality of photovoltaic cell modules positioned on the platform for receiving concentrated solar radiation. The module includes a heat dissipation housing which supports a silicon cell across an open end of the housing. A heat transfer block physically engages the silicon cell and a metallic sponge and wick is attached to the heat transfer block and depends therefrom into the housing. The housing is partially filled with liquid to facilitate heat removal. The silicon cells are processed by preferential etching to form V grooves which define a plurality of diode elements having generally trapezoidal cross-sections. The elements may be serially interconnected by metallization on the V groove surfaces. The physical configurations of the elements and the use of antireflective coatings on surfaces of the elements result in high efficiency cells.

REFERENCES:
patent: 4056413 (1977-11-01), Yoshimura
patent: 4101351 (1978-07-01), Shah et al.
patent: 4110122 (1978-08-01), Kaplow et al.
patent: 4135950 (1979-01-01), Rittner
patent: 4144096 (1979-03-01), Wada et al.
patent: 4152824 (1979-05-01), Gonsiorawski
patent: 4155783 (1979-05-01), Feist
patent: 4156289 (1979-05-01), Hoffmann et al.

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