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2022-10-17
Flexible perovskite solar cells
A perovskite solar cell (PSC) is a type of solar cell which includes a perovskite-structured compound, most commonly a hybrid organic-inorganic lead or tin halide-based material, as the light-harvesting active layer. Perovskite materials, such as methylammonium lead halides and all-inorganic cesium lead halide, are cheap to produce and simple to manufacture. Perovskites have inherent properties such as broad absorption spectrum, fast charge separation, long electron and hole transport distance, and long carrier separation lifetime, making them very promising solid-state solar cell materials.
Perovskite materials
A perovskite is any material with a crystal structure following the formula ABX3, which was first discovered as the mineral called perovskite, which consists of calcium titanium oxide (CaTiO3). Perovskites have a nearly cubic structure and the chemical formula is ABO3. Typically perovskite compounds have the chemical formula ABX3, where "A" and "B" represent cations and X is an anion bound to both. A large number of different elements can combine to form a perovskite structure. Using this compositional flexibility, scientists can design perovskite crystals with a variety of physical, optical, and electrical properties. Today, perovskite crystals are found in ultrasonic machines, memory chips and current solar cells.
Perovskite tandem solar cells technology
Tandem solar cells are an important strategy to push the Shockley-Queisser (S-Q) efficiency limit of single-junction solar cells, it can be lower the cost per watt.
Ministry of Industry and Information Technology: Promote the development and application of large-size silicon wafers, N-type high-efficiency cells, calcium titanium ore and other technologies
On August 25, the Ministry of Industry and Information Technology (MIIT) publicly solicited comments on the "Guidance on Promoting the Development of Energy Electronics Industry (Draft for Comments)", which mentions accelerating the application of energy electronics technology and products in industry, communications, energy, transportation, construction, agriculture and other fields. Encourage the construction of industrial green microgrid, distributed photovoltaic, decentralized
Research and development of high-efficiency silicon-based cells, high-efficiency and stable calcium titanite cells and other technologies! Science and technology to support the implementation plan for carbon neutral carbon peaks (2022-2030) is out
Research and development of high-efficiency silicon-based photovoltaic cells, high-efficiency and stable calcium-titanium ore batteries and other technologies, research and development of carbon fiber wind turbine blades, ultra-large offshore wind turbine design and manufacturing and installation test technology, typhoon-resistant offshore floating wind turbines, floating photovoltaic systems. Research and development of high-reliability, low-cost solar thermal power generation and cogeneration technology, breakthroughs in high-temperature heat absorption, heat transfer and heat storage key materials and equipment. Research and development of multi-purpose small modular reactors and ultra-high temperature gas-cooled reactors and other technologies with high safety. Research and development of geothermal power generation, ocean energy power generation and biomass power generation technologies.
2021-10-09
The 2021 Nobel Prize will be announced soon, will this "unattractive" looking Japanese man win the prize?
Every year the announcement of the Nobel Prize generates worldwide attention, and this year is no exception!
2021-09-22
Heavyweight! Promote high-efficiency solar cells, renewable energy to produce hydrogen! The CPC Central Committee and the State Council issued the opinion of carbon da peak carbon neutral work!
Today, the state gave important guidance. (Photovoltaic) opinion points out that the overall green transformation of economic and social development as a leader, to energy green low-carbon development as the key, to promote advanced green low-carbon technology and experience as the principle, and strive to achieve the total installed capacity of wind power, solar power generation to more than 1.2 billion kilowatts and other goals. In addition, to increase the application of renewable energy buildings, to overcome the high-efficiency solar cells, renewable energy hydrogen production and other technologies, in-depth research to support wind power, solar power large-scale friendly grid-connected smart grid technology.
2021-06-15
National Energy Board: the whole county roof distributed photovoltaic development pilot work started, the government installation ratio of not less than 50%
Recently, the National Energy Board comprehensive department issued a notice on the submission of the whole county (city, district) rooftop distributed photovoltaic development pilot program. The notice points out that the whole county (city, district) roof distributed photovoltaic construction, is conducive to the integration of resources to achieve intensive development, is conducive to the elimination of power peak load, is conducive to saving and optimizing investment in the distribution network, is conducive to guiding residents to green energy consumption, is to achieve "carbon peak, carbon neutral" and rural revitalization of the two major national strategies. It is an important measure to realize the two national strategies of "carbon peak and carbon neutral" and rural revitalization.