Fraunhofer research multi junction solar cell efficiency breakthrough 30%- Sohu Technology 若槻ゆうか

Fraunhofer study: multi junction solar cell efficiency breakthrough 30%- technology Sohu of silicon solar cell is the mainstream of solar power generation technology at present, but has been large-scale commercialization of technology, the conversion efficiency is less than 23% expected. Industry and research units continue to actively develop a variety of technologies to break through the efficiency of the ceiling; the latest public technology confirmed that solar cell efficiency can exceed 30%. Study on the German Fraunhofer solar system (ISE) and Group EV (EVG) Australian Corporation cooperation, success in crystalline silicon solar cell based solar cell technology, has joined the two electrodes more, make the conversion efficiency of solar cells has shot up to 30.2%. Silicon solar cells are the mainstream of solar power generation technology, but in the current large-scale commercialization of technology, the conversion efficiency is expected to exceed 23%. Industry and research units continue to actively develop a variety of technologies to break through the efficiency of the ceiling; the latest public technology confirmed that solar cell efficiency can exceed 30%. Fraunhofer ISE and EVG, through direct wafer bonding (direct wafer bounding) process will be 35 micron semiconductor material into silicon material; by plasma activation, cell surface of the wafer (subcell) will present vacuum bonding, the group 35 battery surface atoms and silicon atoms closely jointed. The formation of secondary battery with silicon based materials. Through the stack of indium gallium phosphide (GaInP), gallium arsenide (GaAs), silicon (Si) and other 3 kinds of secondary batteries composed of multi joint battery, can absorb a wider spectrum of sunlight, conversion efficiency can be greatly improved. Fraunhofer ISE and EVG the success of the 4 square centimeter area of 35 semiconductor silicon / multi junction cell conversion efficiency increased to 30.2%, broke through the ceiling 29.4% theoretical efficiency of crystalline silicon solar cell, and complete the inspection certificate by Fraunhofer laboratory. The voltage and current curves of 35 – Semiconductor / silicon multi junction solar cell. (Source:Fraunhofer) SHARP similar technology, for the satellite and coffee chair at present, this kind of 35 semiconductor silicon / multi junction battery costs are still high, the 35 semiconductor epitaxial engineering and bonding techniques have reduced the cost of space. Fraunhofer ISE researchers said it would continue to study to promote the conversion efficiency of more than 30% solar modules come out. The same with multi junction technology to develop highly efficient solar cells, and SHARP of Japan (Sharp). SHARP in May this year, open cooperation with the Japanese NEDO research results, through the compound three joint technology to create a conversion efficiency of up to 31.17% solar photovoltaic cells, for the current global conversion efficiency of the highest technology. SHARP’s three joint compound battery level相关的主题文章: