Bilayer passivation structure for photovoltaic cells

Details Bilayer passivation structure for photovoltaic cells Bilayer passivation structure for photovoltaic cells

1999-04-23

2000-11-21

Robinson, Ellis

Batteries: thermoelectric and photoelectric

Photoelectric

Cells

136256, H01L 310232

Patent

active

061506036

ABSTRACT:
An improved photovoltaic cell, according to one embodiment, includes a base layer; a primary window layer having a first type of doping, with the primary window layer being disposed over the base layer; and a secondary window layer having the first type of doping, with the secondary window layer being disposed over the primary window layer. In another embodiment, the improved photovoltaic cell has a multilayer back-surface field structure; a base layer disposed over the back-surface field structure; and a primary window layer disposed over the base layer. In yet another embodiment, the photovoltaic cell includes a base layer; and a primary window layer disposed over the base layer, with the primary window layer having a thickness of at least about 1000 Angstroms.

REFERENCES:
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patent: 4332974 (1982-06-01), Fraas
patent: 5100478 (1992-03-01), Kawabata
patent: 5322573 (1994-06-01), Jain et al.
patent: 5407491 (1995-04-01), Freundlich et al.
patent: 5800630 (1998-09-01), Vilela et al.

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