On November 28th, Professor Chen Yiwang and his team from Gannan Normal University innovatively proposed and implemented a "laser annealing" technology that can be carried out in an air environment, providing a key scientific basis and technical path for the large-scale, low-cost, and high stability preparation of perovskite photovoltaic materials. This study was led by Nanchang University and collaborated with institutions such as Gannan Normal University, Jiangxi Normal University, and Guang'an University of Technology. The relevant achievements have been published in the international academic journal Science. Perovskite solar cells are considered the most promising next-generation photovoltaic technology due to their high photoelectric conversion efficiency and solution processability. The traditional hot annealing process requires long-term treatment in inert gas, which is difficult to meet the requirements of high-throughput production. The research team has revealed for the first time the "four stage degradation mechanism" of perovskite films during heat treatment in air through in-situ synchrotron radiation characterization, and discovered an "environmental degradation free window" of approximately 123 ± 18 seconds. Based on this discovery, the team developed a high-power blue light laser annealing process that can achieve rapid crystallization of large-area films within 20 seconds, avoiding structural degradation caused by water and oxygen erosion. This achievement provides a high-throughput, low-energy, and environmentally friendly preparation path for perovskite photovoltaic devices, breaking through the traditional dependence on inert environments and overcoming the bottleneck of large-area printing accuracy. It provides important technical support for China to achieve efficient photovoltaic material preparation from laboratory research to industrial application. Chen Yiwang's team successfully incubated Jiujiang Roushuo Optoelectronics Technology Co., Ltd., transforming the core flexible perovskite technology into a practical, replicable, and promotable industrial achievement. The company has started the construction of a 100 MW mass production line and the first kilowatt level demonstration station. The products have been widely used in cutting-edge scenarios such as Building Integrated Photovoltaics (BIPV), unmanned aerial vehicles, and individual self power supply systems, becoming an important force in the transformation and upgrading of the new energy industry. At the same time, the high-performance silicone elastomer packaging material developed by the research team has solved the "pain point" of flexible photovoltaic adhesion and long-term stability. This technology has been successfully applied to multiple end enterprises, forming a company with an annual production scale of 80 million meters. Focusing on the energy structure transformation needs under China's "dual carbon" goal, the company has carried out research and development, production, and sales of lightweight photovoltaics, laminated photovoltaics, and flexible photovoltaic modules. (New Society)