Last Updated： Aggregation Period:Feb 04, 2026～Mar 03, 2026
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High-efficiency four-junction GaAs solar cells suitable for use in spacecraft such as satellites.
A four-junction GaAs solar cell that can be used in spacecraft such as artificial satellites. It has improved conversion efficiency compared to the three-junction GaAs solar cells commonly used in many conventional satellites.
Ground-based triple-junction GaAs solar cell with a cell thickness of 150±20μm.
The "Triple Junction GaAs Solar Cell for Ground Use" has a cell area of 30.18 cm². The substrate material is GaInP/GaAs/Ge on a Ge substrate, and the cell thickness is 150±20 μm. The average mass is ≦86 mg/cm² (cell). Additionally, the AR coating is TiOx/Al2O3. 【Features】 ■ Substrate material: GaInP/GaAs/Ge on Ge substrate ■ Cell area: 30.18 cm² ■ Average mass: ≦86 mg/cm² (cell) ■ Cell thickness: 150±20 μm ■ AR coating: TiOx/Al2O3 *For more details, please refer to the PDF document or feel free to contact us.
Introduction of GaAs solar cells with an average mass of 112 mg (cell) and a density of 114 g/m².
The "Flexible Single Junction GaAs Solar Cell for Ground Use" has an average mass of 112 mg (cell). The size is 50×19.6 mm ±0.5, with a density of 114 g/m². The light-receiving surface dimensions are 50×17.1 mm. Additionally, the bending radius is >5 cm, and it is coated with AR (anti-reflective) coating. 【Features】 ■ Size: 50×19.6 mm ±0.5 ■ Average mass: 112 mg (cell) ■ Density: 114 g/m² ■ Light-receiving surface dimensions: 50×17.1 mm ■ Bending radius: >5 cm ■ AR coating *For more details, please refer to the PDF document or feel free to contact us.
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.
Calibration of reference solar cells using the solar simulator method. Reference cells with GaAs that have similar spectral sensitivity characteristics and high stability.
GaAs-type (III-V compound semiconductor) cells have spectral sensitivity characteristics that are much more similar to perovskite-type cells compared to conventional Si-type cells, and they also excel in stability. GaAs-type cells show significantly better spectral mismatch when compared to measurements using the combination of the commonly used "Si-type cell" and the colored glass filter KG-5 as a reference for perovskite-type cells. ReRa Solutions in the Netherlands is one of the few companies manufacturing high-quality GaAs-type reference solar cells, and we have established a system to provide stable supply and technical support within Japan, leveraging our know-how in the manufacturing and sales of our own reference solar cells. Our reference solar cells also comply with the standards of the WPVS (World Photovoltaic Scale) and the requirements of IEC 904-2. Additionally, cell calibration is conducted at the Radboud University Nijmegen PV Measurement Facility and is traceable to the NREL in the United States.
Flexible high-efficiency silicon solar cells and high-efficiency triple-junction GaAs solar cells that can be used in spacecraft such as artificial satellites.
Flexible high-efficiency crystalline silicon solar cells and high-efficiency triple-junction GaAs solar cells are utilized in numerous spacecraft such as artificial satellites. Solar panels using these solar cells are also provided. Additionally, flexible GaAs solar cells for space applications are also available.
GaAs solar cells using InGaP/GaInAs/Ge on Ge substrate.
The "Concentrator Type 3-Junction GaAs Solar Cell (3C44C 10mm)" has an effective cell area of 10mm × 10mm = 100mm². The substrate material is InGaP/GaInAs/Ge on a Ge substrate, with dimensions of 10.1 × 10.5mm ± 0.1mm. The cell thickness is 190 ± 20μm. Additionally, the bonding methods include welding, soldering, and adhesive bonding. 【Design and Mechanical Characteristics (Excerpt)】 ■ Substrate Material: InGaP/GaInAs/Ge on Ge substrate ■ AR Coating: TiOx/Al2Ox ■ Dimensions: 10.1 × 10.5mm ± 0.1mm ■ Effective Cell Area: 10mm × 10mm = 100mm² ■ Cell Thickness: 190 ± 20μm *For more details, please refer to the PDF document or feel free to contact us.
Available for use in spacecraft such as satellites! There are many successful applications.
The product is a high-efficiency triple-junction GaAs solar cell used in numerous artificial satellites and other spacecraft. Solar panels utilizing these solar cells are also available. Additionally, we offer flexible GaAs solar cells for space applications. 【Features】 - Proven track record in numerous low Earth orbit, geostationary satellites, spacecraft, ultra-small satellites, CubeSats, small satellites, and satellite programs (domestic). - Available for provision at CIC. - We also handle lower-priced options with efficiency typically about 1-2% lower than usual. *For more details, please refer to the PDF materials or feel free to contact us.
Introduction of a 5.6×6.0mm±0.1mm concentrated type 3-junction GaAs solar cell!
The "Concentrator Type 3-Junction GaAs Solar Cell (3C44C 5.5mm)" has an effective cell area of 5.5mm × 5.5mm = 30.25mm². The substrate material is InGaP/GaInAs/Ge on a Ge substrate, with dimensions of 5.6 × 6.0mm ± 0.1mm. The cell thickness is 190 ± 20μm. Additionally, the bonding methods include welding, soldering, and adhesive bonding. 【Design and Mechanical Characteristics (Excerpt)】 ■ Substrate Material: InGaP/GaInAs/Ge on Ge substrate ■ AR Coating: TiOx/Al2Ox ■ Dimensions: 5.6 × 6.0mm ± 0.1mm ■ Effective Cell Area: 5.5mm × 5.5mm = 30.25mm² ■ Cell Thickness: 190 ± 20μm *For more details, please refer to the PDF document or feel free to contact us.
Lightweight panels using high-efficiency silicon and gallium arsenide (GaAs) solar cells, optimal for solar unmanned aerial vehicles and solar cars.
Lightweight solar panels using high-efficiency solar cells optimal for solar unmanned aerial vehicles (UAVs), solar cars, etc. These panels can be laminated to cover the solar cells, allowing them to be adhered to the wings of unmanned aerial vehicles, accommodating the requested size and connection method of the solar cells. Additionally, they can be flexibly mounted to match the shape of the wings. The usable solar cells include high-efficiency silicon and gallium arsenide (GaAs), and flexible solar cells are also available.
Solar panels for CubeSats from 1U to 12U.
We provide solar panels for ultra-small satellites, CubeSats. We offer solar panels ranging from 1U to 12U (standard and custom types). Additionally, it is possible to install a geomagnetic torquer, gyroscope, solar sensor, and temperature sensor on the solar panels. Furthermore, we also have deployable solar panels for 3U and 6U, as well as deployable tracking solar panels.
This is a solar charger for AA and AAA rechargeable nickel-metal hydride batteries, mobile phones, and portable AV devices.
Product Overview This is a pocket-sized universal portable solar power system that can charge AA and AAA batteries, as well as supply power to various small mobile devices such as mobile phones, PDAs, and portable AV equipment. It is the original mobile solar cell that has won the Good Design Award and the Special Award from the Small and Medium Enterprise Agency in 2001, known for its long life and long-selling history. Main Features It can charge two rechargeable nickel-metal hydride batteries "Violetta" in AA or AAA size (sold separately) simultaneously using solar power. Additionally, if you connect multiple units with a "DC power cable" (sold separately), you can achieve rapid charging. By attaching a "USB power adapter" (sold separately) and connecting it to mobile devices such as mobile phones, PDAs, and portable AV equipment with a DC input of 4V to 6V using commercially available USB charging cables, you can charge the batteries of those devices. If you pre-charge the rechargeable nickel-metal hydride batteries "Violetta," you can use them even when there is no sunlight. You can also supply power to mobile devices with a DC input of 3V by connecting them with a "DC power cable." If you pre-charge the rechargeable nickel-metal hydride batteries "Violetta," you can use them even when there is no sunlight.
Design and manufacture of high-efficiency triple-junction GaAs solar cell panels for spacecraft such as ultra-small to medium-sized satellites.
We are engaged in the design and manufacturing of solar panels using high-efficiency triple-junction GaAs solar cells for space applications, including numerous ultra-small to medium-sized satellites. We cover a wide range from solar panels for ultra-small satellites and CubeSats to solar panels and deployment mechanisms for medium-sized satellites. Additionally, we offer services for attaching solar cells to honeycomb panels and CFRP substrates. Currently, while it has become quite difficult to obtain solar cells, we can design and manufacture panels in a short period due to our long-term supply contracts with solar cell manufacturers when providing solar panels. Furthermore, we can also provide solar paddle drive mechanisms (SADM) together.
High-efficiency solar cells that can be used for space applications such as satellites.
We sell high-efficiency triple-junction GaAs solar cells that can be used in space equipment such as satellites. We have three types with average efficiencies of 27%, 28%, and 29.5%.
High-efficiency solar cells made from environmentally friendly nitride semiconductors.
The nitride semiconductor InGaAlN can almost cover the entire solar spectrum, and its constituent elements are also environmentally friendly. Unlike conventional semiconductors, nitride semiconductors do not have lattice-matched substrates, resulting in many defects within the crystal. In solar cells, it is necessary to efficiently extract photo carriers. As a strategy, a device structure that utilizes the spontaneously generated polarization electric field within the crystal has been proposed. To realize this structure, it is essential to have growth technology that controls the polarity of the crystal (the arrangement order of constituent atoms along the thin film crystal growth direction), particularly nitrogen (N) polarity growth technology. Tohoku University has successfully achieved this N-polar growth earlier than anyone else in the world and has fabricated N-polar solar cells. Experimental verification has shown that the extraction efficiency of photo carriers is more than eight times greater compared to Ga-polar solar cells.
"Free samples" are currently being offered! Please check the application method from the [PDF download] button, or apply directly from the related links.
The global gallium arsenide (GaAs) solar cell market size was valued at $14.55 billion in 2022, and it is projected to grow at a CAGR of 8.45% during the forecast period (2024-2031), increasing from $15.78 billion in 2023 to $30.19 billion by 2031. The gallium arsenide (GaAs) solar cell market is expected to experience significant growth in the coming years due to several key factors. GaAs solar cells are becoming increasingly attractive for various applications because they are more efficient and have lower manufacturing costs compared to traditional silicon-based solar cells. These applications range from high-efficiency space and military uses to niche markets such as consumer electronics, where efficiency is crucial.
Aiming for a conversion efficiency of over 50%! Detailed description of multi-junction solar cells using III-V compound semiconductors and space solar cells!
There is an increasing number of companies, research institutes, universities, and researchers and engineers who are interested in solar cells and the field of solar power generation, including multi-junction solar cells and concentrated solar cells, and wish to participate anew. Education and training for young researchers and engineers who show interest in solar cells and solar power generation, as well as for newcomers to the field, are extremely important from the perspective of strengthening research and development in this area and creating new industries. This time, with the cooperation of many people, we are able to publish a specialized book on "high-efficiency solar cells," which I believe holds great significance not only for high-efficiency solar cells but also for the widespread introduction and dissemination of solar cells and solar power generation, and ultimately for the establishment of clean energy that is essential for the maintenance and development of human civilization. I hope this book will serve as a specialized reference for those involved in this field, a guide for those interested in solar cells and solar power generation, and an introductory book for students and young researchers and engineers.
