Batteries: thermoelectric and photoelectric – Photoelectric – Cells
Patent
1995-02-21
1996-09-10
Weisstuch, Aaron
Batteries: thermoelectric and photoelectric
Photoelectric
Cells
136256, 257436, 257459, 437 2, 437211, H01L 3104, H01L 3118
Patent
active
055542298
ABSTRACT:
A light directing element for a photovoltaic device and method of manufacture. The light directing element is in the form of an encapsulating cover which fits onto the top of the underlying photovoltaic cell. A bottom surface of the encapsulating cover is provided with V-shaped grooves which are in registry with the underlying grid lines of the photovoltaic cell. Preferably, the side walls of the grooves are coated with a reflective coating. Incident light, falling on the reflective side walls will be reflected onto adjacent portions of the photovoltaic cell, thereby minimizing shading effects caused by the grid lines. In a particularly preferred embodiment, each groove in the cover is filled with a conductive carbon paste, and conductive wires are embedded therein. This conductive wires serve as the current collecting network of the solar cell and are in electrical communication with the top electrode thereof by means of the conductive carbon paste. This embodiment has the desirable combination of decreased shading, and lower electrical resistance of the current collecting network.
REFERENCES:
patent: 4260429 (1981-04-01), Moyer
patent: 4379202 (1983-04-01), Chalmers
patent: 4453030 (1984-06-01), David et al.
patent: 4612410 (1986-09-01), Hewig et al.
patent: 5076857 (1991-12-01), Nowlan
United Solar Systems Corporation
Weisstuch Aaron
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