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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.
DaZheng attended the 4th Heterojunction, Perovskite & Tandem solar cell Forum
From August 25 to 26, 2022, the 4th Heterojunction, Perovskite & Tandem solar cell Forum was held in Changzhou, Jiangsu Province. The 4th Heterojunction, Perovskite & Tandem solar cell Forum aims to discuss the outlook of photovoltaic industry in the background of carbon neutral, focusing on the optimization of heterojunction cell technology, key links and equipment cost reduction, and explore the comprehensive development level of heterojunction, perovskite and tandem solar cells, as well as the market potential in the hot field of photovoltaic.
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.
2022-08-05
On July 19,2022, Nikkei reported Dazheng mass production of 40 * 60cm perovskite solar cell module
A Chinese company has launched the world's first mass production of large modules of new solar cells. The new solar cells are bendable and ultra-thin flexible perovskite cells. Although the manufacturing cost is three times that of existing photovoltaic cells, it may be reduced to half that of silicon type cells in the future. At present China leads the way of perovskite cell in mass production.
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!
2021-09-28
Dazheng won the first place in the growth group of the Advanced Manufacturing Global Finals of the sixth Tsinghua Alumni Three Innovation Competition
On the afternoon of September 25, the 6th Tsinghua Alumni Tri-Competition Advanced Manufacturing Global Grand Final, co-hosted by Tsinghua Alumni Association and Luoyang Municipal People's Government, and hosted by the Municipal Science and Technology Bureau, Municipal Science and Technology Association, High-tech Zone Management Committee, Tsinghua Alumni Association Advanced Manufacturing Special Committee and Qingluo Base, was grandly opened in Luoyang. The finals focused on advanced manufacturing-related fields, and 104 high-quality projects from eight domestic regions, including Tsinghua Park, Beijing-Tianjin Wing, Yangtze River Delta, Guangdong, Hong Kong and Macau, and European international regions, came together in Luoyang to compete!
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.