Breakthrough in the research of monocrystalline silicon solar cells where semiconductors are located
Led by researcher Han Peide from the Institute of Semiconductors, Chinese Academy of Sciences, the Photovoltaic Energy Group has been working tirelessly to meet the growing demands of the photovoltaic industry. Supported by national vertical funding and self-raised resources, the team focused on developing advanced solar cell technologies. After years of dedicated research, they successfully integrated key innovations such as incident light reduction, surface passivation, and selective emitter techniques. By leveraging their proprietary partial backside doping technology, they achieved a remarkable solar cell efficiency of 20.0% on a single-crystal silicon substrate, with specific performance metrics including a short-circuit current density of 43.9 mA/cm², an open-circuit voltage of 602 mV, and a fill factor of 0.758. This achievement was officially certified by the China Institute of Metrology.
As the Chinese-style photovoltaic movement continues to gain momentum, monocrystalline and polycrystalline silicon solar cells are expected to transition into the third-generation category described by Martin A. Green. These next-generation cells are anticipated to achieve photoelectric conversion efficiencies of at least 20%, power costs below $0.5/W, and manufacturing costs under $100/m². Given these improvements, the dominance of monocrystalline and polycrystalline silicon in the solar energy market is expected to remain strong for many years. Therefore, enhancing the efficiency of single-crystal silicon cells, building independent intellectual property rights, and guiding PV companies toward sustainable development have become strategically crucial tasks.
In response to the evolving challenges in the photovoltaic sector, the research group introduced the "Twelve-Word Approach" — efficiency improvement, re-examination, cost reduction, and application promotion — as a core principle for daily operations. They are committed to aligning their R&D roadmap with real-world industrial needs. Moving forward, the team will continue to optimize battery efficiency while conducting pilot tests on existing technologies and accelerating their integration into production lines. This ongoing effort reflects their dedication to driving innovation and ensuring long-term competitiveness in the global solar energy landscape.
What is rock wool Sandwich Panel? what is it used for?
The practicability of the rock wool sandwich panel is good, and it has a wide range of applications. Many buildings use this type of panel. But many people don't know much about its materials and uses, so let's introduce it in detail below.
making raw materials
The raw materials of rock wool sandwich panels are generally high-quality basalt, dolomite, etc., mixed according to a certain proportion, melted in a high-temperature blast furnace, and then made into fibers. After cooling, a certain amount of binder is added for rolling, so that the sandwich panel we use every day can be formed. Cutting of different sizes and specifications can be carried out, and the size and specifications of sandwich panels can also be customized.
Application range
In fact, rock wool sandwich panel are not only suitable for daily use in some buildings such as Steel Structure Warehouse, roofs and walls of Prefabricated House, but also can be used for more than 100 yuan, and can be used for soilless cultivation, and its annual use area is wide , City Volunteer Bank is indeed very good. Because it shows a slightly alkaline reaction in the initial stage, it is necessary to pay attention to the pH value when using the nutrient solution. After a period of use, the response will be neutral. Horticultural applications can be carried out according to daily application conditions, as well as water holding capacity, water tension, etc.
Advantages
The building construction industry uses this kind of sandwich panel mainly because of its excellent performance. It has very good fireproof performance, thermal insulation effect, and also has a certain sound absorption effect, so it is very suitable for use as a building material. Moreover, its rigidity is good and its strength is very good, and there will be no problems such as deformation and cracking, and it is also very suitable for long-term use.
Now many manufacturers can provide customized rock wool sandwich panel services. We only need to clarify our needs, choose the appropriate sandwich panel size and specifications, etc., and make an appointment for customization immediately. Moreover, the price of factory direct sales is favorable, the price is high, and it can also provide various services such as transportation and after-sales. It is also guaranteed to choose a reliable manufacturer to cooperate in ordering sandwich panels.
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Henan Jinming Metal Material Co., Ltd. , https://www.jinminghouse.com