High-efficiency triple-junction GaAs solar cells for flat panel and concentrator photovoltaic systems, receivers, modules, and concentrator photovoltaic systems.
By utilizing triple-junction GaAs solar cells with more than 1.5 times the conversion efficiency of conventional silicon-based solar cells, there are advantages in both efficiency and cost compared to traditional systems in large-capacity concentrated solar power systems.
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basic information
High-efficiency (average 30% @ 1 Sun, about 42% @ concentration ratio 500) gallium arsenide (GaAs) solar cell for concentrated solar power generation. Standard cell sizes are available in three types: 10mm square, 5.5mm square, and 3mm square. Additionally, there is a heat-conductive receiver (compatible with 10mm square and 5.5mm square cells) equipped with bypass diodes and interconnectors. Furthermore, there are solar cell modules for mirror-type solar power generation (for water cooling). We can also provide 40x80mm (standard) cells and custom sizes for other applications (flat panels, solar cars, solar unmanned aerial vehicles, etc.), with cell efficiencies of approximately 30-34%. Sizes are available even in small quantities. Additionally, we offer ultra-lightweight, high-efficiency flexible thin-film single-junction and dual-junction GaAs solar cells (average conversion efficiencies of about 24% and 26%, respectively) along with their modules and laminated panels for solar cars and solar unmanned aerial vehicles.
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Applications/Examples of results
Concentrated solar power systems are used in various countries around the world. They are also used for various research purposes domestically. Furthermore, they are utilized in solar cars and solar planes, among others. As for flexible solar cells, they are used for automotive applications, outdoor power generation, UAVs, tablets, and smartphones.
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Company information
The Advanced Technology Research Institute is an engineering company that supports space development and utilization, including rockets and artificial satellites, in Japan and around the world. We conduct a wide range of activities from the design and development of space systems, subsystems, and components for satellites and rockets, both small and large, to the sale of overseas space equipment. Additionally, we sell solar cells for space and ground use, and we design and develop solar cell panels for space as well as sell solar power generation modules and systems for ground use. For small satellites, including CubeSats, we provide system development from 1U to 12U, offer bus components, design and develop bus equipment, assemble satellites, and conduct integration and testing of satellites, including payloads. We also design, develop, and sell small electric propulsion systems for CubeSats and small satellites.