The photovoltaic researcher gazed out of the window at the rain and sighed, "This week's experiment will be postponed again." The aerospace test engineer frowned at the data that exceeded the standard deviation - "The light in space is always a bit off. Safety assessment can't be done." The agricultural technician looked at the strawberries in the greenhouse with worry - "There's not enough light in winter, the sweetness won't increase, and they won't fetch a good price..." The "uncontrollability" of natural light was once a "roadblock" on the path of innovation in countless industries. For two decades, Saifan Optoelectronics has been deeply engaged in the optoelectronics field. With a solar simulator that integrates "precise replication, extreme adaptability, and flexible customization", it has brought "obedient light" to various industries, transforming innovation from "relying on the weather" to "active control".
Photovoltaic R&D: 0.3% light intensity stability, breaking through efficiency without detours
"Previously, when testing perovskite/silicon tandem cells, the efficiency was 25.1% in the morning, but dropped to 23.8% in the afternoon on a cloudy day. The data fluctuated like a 'roller coaster', and the core issue remained unidentified for half a year." " The concern of Mr. Wang, the R&D director of a certain photovoltaic enterprise, is a common pain point in the industry. It was not until the introduction of the Saifan solar simulator that the research and development truly "stepped on the gas".
This device is like a "precision calibrator of light" : The spectrum covers the entire band from 400nm to 1100nm, equipped with the 5th generation intelligent spectral fitting algorithm, achieving A spectral matching degree of A + (0.875-1.125). Even in the near-infrared region of 780-1100nm, which is easily overlooked by traditional devices, it can accurately restore the energy distribution. More importantly, it is stable - the light intensity fluctuation is as low as ±0.3% per hour. After continuous testing for 10 hours, the light intensity change does not exceed "the brightness of a night light". The spatial uniformity reaches ±2%, and every inch of the battery cell can be evenly "bathed" in light. The data deviation is strictly locked within 1%.
With this "powerful tool", Wang's team discovered the problem in just 12 days: the battery's absorption efficiency in the near-infrared band was 13% lower than expected. After optimizing the material composition, the battery conversion efficiency exceeded 27.3% at one stroke, and the related results were published in ACS Energy Letters. In the mass production stage, an automated test line composed of 8 Saifan simulators screens batteries at A speed of 60 pieces per minute. The A-grade product rate has jumped from 88% to 94%, reducing defective product losses by over 16 million yuan annually. "With this Saifan device, we can focus all our energy on technological breakthroughs rather than struggling with the weather." " Engineer Wang sighed.
Aerospace test: Stable operation from -40℃ to 60℃, replicating space light "without the slightest deviation"
"In-orbit life assessment of spacecraft battery wings: A 1% deviation in light intensity can lead to a three-year error. Traditional simulators have a light intensity drift of over 4% at a low temperature of -40 ℃, making them completely unusable." " Sister Li, a test engineer from a certain team of China's space industry, once stayed up all night testing the flexible solar cell wings of the space station. And Saifan's customized solutions have become the "reassuring pill" for aerospace testing.
The Saifan simulator features a military-grade 6061-T6 aluminum alloy body, with an airtight encapsulation of the optical chamber and transmission chamber. It is like putting on a "space protective suit" for the equipment and can operate stably within an extreme temperature range of -40 ℃ to 60℃. When simulating the AM0 spectrum in space (solar radiation without atmospheric filtering), through calibration of 200,000 sets of space spectral data, atmospheric interference is precisely removed, and the irradiance error is ≤±1%. What's more considerate is that the equipment is equipped with a 0.1ms high-sensitivity sensor, which can correct the light intensity fluctuations in real time. After 720 consecutive hours of low-temperature irradiation testing, the light intensity deviation has always been ≤±1.2%.
Relying on these precise data, the team successfully developed a new type of anti-radiation coating, which extended the in-orbit life of the battery wing by three times. During the Mars exploration mission, the Saifan team demonstrated "rapid response capability" : they customized the "AM0 + Infrared Enhancement" module in just 7 days, increasing the irradiance in the 800-1100nm band by 30%, perfectly replicating the Martian light, and boosting the power generation efficiency of the Mars rover's solar panels by 22%, thus resolving the "energy anxiety" in deep space exploration.
Scientific research Agriculture: 1% Precision light quality regulation, Allowing "Light Formula" to Bear "Fruits of Prosperity"
To study photocatalytic hydrogen production, it is necessary to adjust the proportion of the ultraviolet band from 5% to 15%. Traditional equipment only has a fixed spectrum, and the experiment has been stuck for half a year without any progress. The predicament of Teacher Zhou from Qingdao University of Science and Technology was broken by the "customization capability" of Saifan Simulator.
This device can be called a "palette of light" : it supports 1% precision adjustment in the ultraviolet, visible and near-infrared bands, and the light intensity can be freely switched from 0.1sun (light on cloudy days) to 2sun (strong light at noon). It can also simulate the alternations of day and night, seasonal changes, and even output special modes such as pulsed light and gradient light. Professor Zhou's team successfully increased the efficiency of photocatalytic hydrogen production by 40% through precise regulation of light parameters, and the results were published in "Applied Catalysis B: Environmental".
In the agricultural sector, it is even a "magic tool for increasing production". Lao Yang, a strawberry grower in Shandong Province, once suffered from insufficient winter sunlight. The sweetness of his strawberries was only 8 degrees, with an average yield of less than 2,000 kilograms per mu and a selling price of just 6 yuan per jin. After the introduction of Saifan equipment, the technical team customized a lighting scheme of "65% red light + 10% blue light + ultraviolet auxiliary", providing 6 hours of "customized light" every day. After one growing season, the sweetness of strawberries soared to 11 degrees, the yield per mu increased by 150 kilograms, the price per jin rose to 12 yuan, and the annual income of 20 mu of land increased by more than 200,000 yuan. "Before, we relied on the weather for a living, but now we make money with 'Saifan Light'. This equipment is worth it!" " Old Yang said with a smile.
Full-cycle service: 48-hour on-site repair, ensuring innovation is "worry-free"
Saifan Optoelectronics is well aware that good equipment requires good service as a foundation. The seven major regional spare parts centers across the country have over 95% of the commonly used spare parts in stock, providing a 7× 24-hour response. Equipment malfunctions can be repaired within 48 hours. A photovoltaic enterprise's production line simulator suddenly broke down. Engineers from Saifan arrived at the scene within 2 hours and completed the repair within 3 hours, without affecting the production of the day. For research institutions, we offer "one-on-one" training. After a certain university's laboratory made the purchase, engineers provided on-site guidance for three consecutive days, helping the team master the spectral regulation skills within a week.
Today, Saifan solar simulators have served over 200 customers worldwide. The repurchase rate of core customers is 82%, and 85% of new customers come from referrals by existing customers. From the efficient operation of photovoltaic production lines to the safe execution of space missions, and then to the joy of harvest in the fields, Saifan has always been helping various industries break the shackles of light with "controllable light". If your innovation is also hindered by the problem of light exposure, this "light that understands your needs" might just be the "golden key" for you to break through the bottleneck.
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