When the research on photovoltaic materials enters the stage of atomic-level regulation and the exploration of photocatalytic reaction mechanisms requires more detailed spectral data, the technical accuracy of testing equipment has become the key to breaking through the scientific research bottleneck. The latest iteration of the LED solar simulator by Beijing Saifan Optoelectronics has been upgraded with 20 core technologies, pushing the accuracy of solar light simulation to a new height and becoming a powerful tool for global research institutions to solve the problems of optical science.
I. Core Technology Breakthrough: The Leap from "Simulation" to "Replication"
After three years of research and development, the R&D team of Saifan has achieved three major technological leaps:
Adaptive spectral synthesis algorithm: Through a 128-channel LED light source matrix, it can calculate the absorption spectral characteristics of different materials in real time, automatically adjust the energy proportion of each band, and improve the spectral matching degree by 15% compared with the previous generation. In perovskite/organic hybrid battery testing, the data repeatability error is controlled within 0.5%.
Ultra-micro light stress reduction 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 of photobiological reactions (such as algae photosynthesis) in low-light environments, and providing a dedicated solution for deep-sea light ecological research.
Transient response test module: The response speed has been increased to 10μs, capable of capturing the instantaneous charge separation process of photovoltaic materials after being excited by light, helping researchers analyze the exciton diffusion path. The related technology has obtained three national invention patents.
Ii. Intelligent Testing System: Making data collection more efficient
The newly equipped "Guangsu" testing system redefines the operation logic of scientific research equipment:
One-click experimental process: With over 100 industry-standard test plans preset, the entire process from parameter setting to data export is fully automated, reducing the preparation time for a single experiment from 40 minutes to 5 minutes. As a result, a laboratory of a certain university has increased the average daily test sample volume from 20 groups to 80 groups.
Multi-dimensional data fusion: Synchronously collect 12 parameters such as spectral response, I-V curve, and temperature coefficient, generate visual data spectra, support cross-analysis with characterization results such as XRD and SEM, and accelerate the resolution of material mechanisms.
Cloud collaboration function: Supports real-time data synchronization across multiple devices. Research teams in different locations can share the testing environment. The joint research project between Zhejiang University and the National University of Singapore has achieved seamless cross-continental experimental data connection through this function.
Iii. Adaptation to Extreme Environments: The "Light Platform" for Expanding the Boundaries of Scientific Research
For special research scenarios, Saifan has launched customized solutions:
The high and low temperature combined system: Seamlessly integrated with the temperature control module ranging from -196 ℃ to 300℃, it accurately simulates the temperature-light coupling environment in space during the space irradiation test of aerospace materials, providing key data for the research and development of photovoltaic modules for Chang 'e-6.
Vacuum light test chamber: It meets the testing requirements under a vacuum environment of 10⁻⁵Pa. In the study of carrier mobility of organic photovoltaic materials, it eliminates the interference of air molecules on light propagation, and improves the testing accuracy by 40%.
Corrosion-resistant optical design: For the seawater photocatalytic hydrogen production experiment, sapphire optical Windows and titanium alloy cavities are adopted. The equipment can operate continuously for 1000 hours in a 3.5% salt spray environment without performance degradation.
Iv. User Evidence: Scientific Research Breakthroughs Brought about by Technological Upgrades
In the research on perovskite quantum dots at the School of Energy of Xiamen University, the team, for the first time, observed the nonlinear relationship between the size of quantum dots and the lifetime of photogenerated carriers by using the transient testing function of the Saifan simulator. The related results were published in Science Advances.
The spectral resolution of the new device reaches 1nm, allowing us to discover the special influence of the 532nm band, which was previously overlooked, on the activity of the catalyst. This is how Researcher Li from the Institute of Chemistry, Chinese Academy of Sciences, commented.
At present, this device has been serving research institutions in 23 countries around the world. Among the papers published in the Nature and Science series of journals, 127 have cited the test data of the Saifan device.
Every breakthrough in scientific research stems from the ultimate pursuit of details. With continuous technological iterations, Saifan LED solar simulators provide more precise "light rulers" for light science research, assisting researchers in exploring the unknown and creating more possibilities in fields such as new energy, new materials, and photobiology.
Link Microblog
