| 摘要 |
<p>A gallium arsenide solar cell (6) having an aluminum gallium arsenide window layer (20) in which fine metallic contact lines (40) extend through the aluminum gallium arsenide window (20) to electrically contact the emitter layer (14), and a plurality of metallic grid lines (50) disposed on the window layer (23) cross the contact lines, thereby making electrical contact to the metallic contact lines (40). A flat metallic strip (60) extending along one of the edges of the solar cell electrically couples the grid lines (50) to one another. Consequently, two separate metals can be used, one with good ohmic contact properties for the metallic contact lines (40) and another with good adhesion and current conducting properties for the metallic grid lines (50). Additionally, the metallic contact lines (46) can be made very narrow to reduce the contact area to the emitter (14) thereby reducing the recombination current in the emitter.</p> |
