Terrestrial solar power system using iii-v semiconductor solar cells
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first embodiment
[0049]FIG. 3 is a view of the present invention using a Cassegrain reflector arrangement. In such an arrangement, the solar cell 204 may be mounted in the center of the reflector 301, and a passive heat spreader 302, with cooling fins 303, may be provided.
[0050]In most general terms, the solar cell module is a thin film semiconductor body including a multijunction solar cell having first and second electrical contacts on the back surface thereof. The module includes a support for mounting the solar cell and making electrical contact with the first and second contacts. A heat spreader 302 is attached to the support of the reflector 301 for dissipating heat from the semiconductor body.
second embodiment
[0051]FIG. 4 is an enlarged view of a parabolic trough solar collector 400 according to the present invention. The trough 401 is one embodiment of the collector optics 102, the trough 401 is positioned to face the sun so that the incoming parallel rays are focused at a focal point along a line, approximately at the center of tube element 402. In one embodiment, the solar cell 406 (such as described in FIG. 2) may be mounted and supported by the tube 402. The tube 402 may be composed of two electrically isolated elements 403 and 404 supported by a dielectric outer support 405. The metallic elements 403 and 404 function as a heat spreader, and may be filled with a circulating liquid to provide even greater cooling to the solar cell 406. The tube 402 is suspended at the focal point by means of a support bracket 408.
[0052]One aspect of the present invention depicted in FIG. 4 is that the solar cell 406 is a flexible thin film and shaped so as to conform to the surface of the tube 402, w...
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