China's perovskite thin film solar cell breakthrough 15%

       The Ministry of Science and Technology of China has made breakthroughs in the key technology of high-tech perovskite thin-film solar cell, and the conversion efficiency of large-area perovskite solar cell reached 15.24%. At present, the results have been confirmed by the authority of the Newport Cooperation (National Renewable Energy Laboratory designated certification body).

   "Father of solar cell", Martin A. Green, a professor at the University of New South Wales, Australia, published in the November 2016 issue of "Photovoltaic Progress: Research and Applications", shows the conversion efficiency of perovskite solar cell. The highest record was 12.1%. Jenny Nelson, a member of the Royal Academy of Sciences and a professor of physics at Imperial College London, said that this breakthrough in the conversion efficiency of Chinese scholars' perovskite solar plate has set a world record known to be "very exciting." ".

      Perovskite solar cell are new photovoltaic technologies that have emerged in recent years. In 2013, they were selected as one of the “Top Ten Breakthroughs of the Year” by Science magazine. In 2016, they were included in the “Top Ten Emerging Technologies” by the World Economic Forum in Davos. The perovskite material not only has excellent photoelectric conversion rate, but also has abundant raw materials and low cost, and its manufacturing cost is expected to reach 1/3 to 1/5 of the current crystalline silicon solar plate, which has great commercial value.

       According to the researchers, perovskite solar plate are made up of several small perovskite solar plate connected by complex processes, but in practice, the conversion efficiency of components is often lower than that of a single solar plate, which has always restricted the technology industry. A big bottleneck. "The breakthrough results in the performance of perovskite pv panels will be a strong push for the commercialization of the technology," said Yang Yang, a professor of materials science and engineering at the University of California, Los Angeles. "Under ideal conditions, the use of perovskite pv panels will be able to reduce the price of electricity to 0.2 yuan / kWh, lower than the current price of hydropower, thermal power."