Method for making gallium arsenide/gallium stibide laminated focusing solar battery

A technology of solar cells and gallium arsenide, which is applied in the manufacture of circuits, electrical components, and final products. It can solve the problems of difficult space heat dissipation, complex day tracking mechanism, and high cost, and achieve low investment, high solar energy utilization, and long life. Effect
CN1905217AInactive Publication Date: 2007-01-31INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
Publication Date
2007-01-31
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention is a method for making a gallium arsenide / gallium antimonide laminated light-collecting solar battery, comprising the steps of: a top battery uses semi-insulating gallium arsenide single crystal plate as substrate; growing an epitaxial plate by organometallic compound gas phase precipitation, molecular beam epitaxial growth technique and liquid phase epitaxial growth technique; making positive electrode on the gallium arsenide layer of the epitaxial plate of the top battery; making back electrode of the top battery on the heavy-doped n-type gallium arsenide layer on the bottom layer of the epitaxial plate; a bottom battery uses gallium antimonide single crystal plate as substrate; making positive electrode on an epitaxial plate of the bottom battery and making back electrode on the bottom surface of the substrate; making the top and bottom batteries into a mechanically laminated solar battery in a mechanical cascade mode, and then packing; using a bracket to equip light collector and solar tracker on the right side of the battery, and equip cooler on the back of the battery.
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Description

technical field

[0001] The invention relates to a method for manufacturing gallium arsenide / gallium antimonide (GaAs / GaSb) mechanical lamination concentrator solar cells. Background technique

[0002] Concentrating solar cells can concentrate light intensity several times or even thousands of times, which not only helps to improve conversion efficiency, but also high light intensity can also increase the fill factor of the cell; at the same time, cheap concentrating materials greatly improve the unit The electricity generated by the cells greatly reduces the cost of power generation and improves the competitiveness of photovoltaic power generation in space satellite power systems and ground photovoltaic power generation systems. According to a rough estimate, the cost of the concentrating solar cell system can be reduced by more than 80% compared with the non-concentrating solar cell system. Therefore, the concentrating solar cell has a good application prospect.

[0003] M...

Claims

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