Driven by the dual forces of global energy transition and the demand for scientific research precision, solar simulation technology has become an indispensable "light key" in fields such as photovoltaic research and development, aerospace engineering, and materials science. Beijing Saifan Optoelectronic Instrument Co., LTD. (hereinafter referred to as "Saifan Optoelectronic"), with 20 years of technological accumulation, has redefined the precision boundaries of solar simulation with its independently developed 7ISO503A-LED 3A-level steady-state solar simulator as the core, providing "Chinese precision" solutions for global research institutions and the industrial sector.
I. Technological Breakthrough: The Leap from "Simulation" to "Replication"
Saifan Optoelectronics' LED solar simulator achieves disruptive innovation with three core technologies:
Adaptive spectral synthesis algorithm
Through a 128-channel LED light source matrix, the absorption spectrum characteristics of the material are calculated in real time, and the energy proportion of each band is automatically adjusted. The spectral matching degree has been improved by 15% compared with the previous generation. In the perovskite/organic hybrid battery test, the data repeatability error is controlled within 0.5%.
Ultra-micro light emphasis section technology
Breaking through the traditional equipment's lower limit of 10W/m² adjustment, it achieves continuous adjustment from 1W/m² to 1500W/m², meeting the precise testing requirements in low-light environments (such as algal photosynthesis research), and providing a dedicated solution for deep-sea light ecological research.
Transient response test module
The response speed has been increased to 10μs, which can capture the instantaneous charge separation process of photovoltaic materials after being excited by light, assisting in the analysis of exciton diffusion paths. The related technology has obtained three national invention patents.
Ii. Performance Benchmark: An all-round player that is precise, stable and energy-saving
Spectral matching degree: Covering the entire band from 400nm to 1100nm, accurately reproducing multiple standard solar spectra such as AM0 (space environment) and AM1.5G (ground standard), solving the problem of spectral drift of traditional xenon lamps.
Stability and uniformity: Both spatial non-uniformity and temporal stability reach grade A (better than ±2%), with a light spot size of Φ70mm, ensuring that the repeatability error of the test data is less than 1%.
Long lifespan and low power consumption: The lifespan of LED light sources can reach up to 100,000 hours (approximately 11 years), which is more than five times that of traditional xenon lamps. The overall power consumption of the machine is only 650W, which is 70% more energy-efficient than xenon lamp equipment and significantly reduces the usage cost.
Iii. Application Scenarios: Full-chain empowerment from laboratory to industrialization
Photovoltaic field: Breaking through efficiency limits
In the research and development of perovskite/silicon tandem cells, a leading enterprise used the Saifan simulator for electrical performance testing and successfully increased the conversion efficiency to 25.8%, which is 2 percentage points higher than the original technology.
Supports synchronous testing of quantum efficiency (QE/IPCE) to help enterprises optimize the defect density of thin films and achieve storage stability in a nitrogen environment for 6,000 hours. The related results were published in ACS Energy Letters.
Aerospace engineering: Verifying reliability in extreme environments
The Beijing Institute of Aerospace Metrology and Testing Technology used the Saifan 3A-level simulator to simulate the AM0 spectrum and verify the stability of the flexible solar cells of the spacecraft under extreme temperature and irradiation conditions. The test data provided key support for the design of the power supply system of the manned space program.
Materials Science and Agriculture: Unlocking the Interactive Code between Light and Matter
In the research on photocatalytic water splitting for hydrogen production, the team from Qingdao University of Science and Technology optimized the orientation of tin-lead alloy perovskite films through the ultraviolet-visible spectrum regulation of the Saifan simulator, achieving a battery conversion efficiency of over 22.6%.
In the field of agriculture, by simulating the light cycles of different seasons, the influence mechanism of light quality on plant photosynthesis has been revealed. The related achievements have been applied to the design of intelligent greenhouse light control systems.
Iv. Saifan Optoelectronics: With innovation at its core, it builds a solid industry benchmark
As a "Specialized, refined, distinctive and innovative" small and medium-sized enterprise and a high-tech enterprise in Beijing, Saifan Optoelectronics holds 33 patents and 33 software Copyrights, and its technical strength has been officially recognized. Its products serve research institutions in 23 countries around the world. In the "Nature" and "Science" series of journals, there are 127 papers that cite the test data of Saifan equipment.
Conclusion: The "Artificial Sun" That Illuminates the Future
From the cutting-edge exploration in the laboratory to the rigorous verification in the space environment, the LED solar simulator of Saifan Optoelectronics has always been a reliable "artificial sun" for both scientific research and industry with its hardcore parameters of "0.5% error control", "100,000-hour lifespan" and "70% energy saving". In the future, Saifan Optoelectronics will continue to iterate its technology, launch aerospace-grade products covering a wavelength of 1800nm, and develop AI spectral regulation technology to empower the global new energy revolution with "Chinese precision".
Beijing Saifan Optoelectronic Instrument Co., LTD
Official website: http://www.7-s.com.cn
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