Researchers in China have increased the conversion efficiency of large-area components of perovskite solar cells to 16% through the development of new materials and technological innovations, which is the highest conversion rate of perovskite solar cell modules. This data has been certified by an international authority and included in the "Solar Cell Efficiency Record". It was published on June 21st in the photovoltaic industry authoritative magazine "Photovoltaic Progress: Research and Application." The "Solar Cell Efficiency Record" was jointly prepared by Australian and U.S. authoritative scholars to record the world's highest efficiency for different types of photovoltaic cells and components and is released every six months.
This research was completed by Hangzhou Finnano Optoelectronics Technology Co., Ltd. The company was founded by three 80-year-old Dr. Haigui in Hangzhou and has successively undertaken two special projects related to photovoltaic new materials of the Ministry of Science and Technology. Perovskite solar cells are a new type of photovoltaic technology that has emerged in recent years. Due to its superior photoelectric conversion efficiency, abundant raw materials, low cost, and environmentally friendly production, the perovskite solar cell has become a hot research field that has received extensive attention.
According to the researchers, a perovskite solar cell module consists of several small perovskite solar cells connected by a complicated process. The work efficiency of the module often depends on the battery cell with the lowest conversion efficiency, so the high conversion rate and reliable process It is a key factor in advancing the industrialization of perovskite batteries. “The R&D team has developed a high-reliability perovskite printing process through the development of new interface materials and the innovation of production processes, which enables the production process of perovskite components to become rapid, continuous and controllable, like team-print newspapers. The R&D testing equipment achieved real-time online monitoring of product quality,†said Dr. Yao Junzhong, head of Fiona Optoelectronics, who said that improving material conversion efficiency and stability effectively guarantees the uniformity of efficiency in large-scale production.
“16% of the photoelectric conversion rate is close to the efficiency of the mainstream solar cell modules in the market.†Yao Yaozhong said that the raw materials used in the artificial synthesis of perovskites are common metal salts, sources are wide, and high temperature and high pressure are not needed during the preparation of batteries. The environment does not produce toxic and harmful gases. In addition, after the expansion of production scale, the production cost of perovskite solar cells is expected to reach 1/3 to 1/5 of the current solar cell cost. Yan Buyi, chief technical officer of Fiona Optoelectronics, introduced that the team has developed a perovskite battery module with an area of ​​16 square centimeters. It is in the form of a thin film and can be curved in large scale. It can not only print on the surface of glass to make glass solar energy, but also can be attached. On the surface of soft materials, for wearable electronic devices.
Yang Yang, a renowned scholar in the field of photovoltaics and a professor at the University of California, Los Angeles, believes that this achievement will effectively promote the commercialization of perovskite solar cells. Researchers also stated that under the background of improving the subsidy standard for photovoltaic power generation in China and establishing a mechanism for the gradual reduction of subsidies, the reduction in the cost of solar cells will help the photovoltaic power generation to achieve parity access and facilitate the healthy development of the industry.
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