China News Service, Beijing, October 30 (Reporter Sun Zifa) Based on the perovskite coating pumped crystallization technology proposed for the first time in the world by a Chinese R&D team, as well as more than 10 years of research results and industrial applications, the country's first national standard for perovskite film crystallization manufacturing "Technical Specification for Pumped Crystallization Physical Liquid Phase Deposition Thin Films" is being actively promoted.
As one of the important practices in the photovoltaic field to implement the deep integration of technological innovation and industrial innovation, the national standard preparation and approval meeting was held on October 30. Representatives from leading companies in the photovoltaic industry chain and scientific research institutions attended the meeting to discuss the standard preparation work and promote the high-quality development of China's perovskite film crystallization manufacturing technology standardization work.
Previously, the National Standardization Administration Committee had approved the standard project in March 2026. This meeting focused on the preliminary preparation of the standard, full text review, and follow-up work arrangements, and continued to promote the national standard approval and the formulation of international standards.
The technical basis for the compilation of this national standard comes from more than ten years of research and development in the field of gas extraction crystallization by the team of Kaifu Optoelectronics and Xi'an Jiaotong University, as well as more than ten years of industrialized cooperation with teams from leading companies such as GCL Optoelectronics.
According to reports, as early as May 2014, the R&D team proposed the perovskite coating extraction crystallization technology for the first time in the world and began the research and development of perovskite coating extraction crystallization equipment. Since then, the team has long-term cooperation with GCL Optoelectronics and others to explore the preparation technology of meter-scale perovskite photovoltaic modules, and continues to carry out key technical research on large-area thin film deposition, crystallization control, material formulation and equipment coordination, and promotes the technology to gradually move from laboratory verification to industrial application.
In November 2019, the R&D team took the lead in undertaking the first common key technology project in the field of perovskite photovoltaics under the national key R&D plan, building key technologies for efficient and stable large-area perovskite thin film manufacturing and a complete set of photovoltaic module technologies, supporting the core technology of perovskite active film crystallization manufacturing to achieve a leap from a half-meter-level principle prototype to a full-meter-level engineering equipment.
In 2023, the R&D team founded Kaifu Optoelectronics, focusing on promoting the industrial application of its original technology system in the fields of perovskite films and commercial aerospace engine nozzle coatings. In 2025, the "Perovskite Film Extraction Crystallization Equipment and Half-price Photovoltaic Module Industrialization" project jointly carried out by Kaifu Optoelectronics, Xi'an Jiaotong University and GCL Optoelectronics was selected into the first Top Ten Progress of China's Surface Technology.
The R&D team stated that China’s original technology that supports and verifies this technical standard has been successfully applied in the large-scale manufacturing of large-scale perovskite films for commercial-grade components. Recently, the country's first set of 2-meter perovskite membrane gas extraction crystallization mass production equipment independently developed by Kaifu Optoelectronics has been successfully installed on the GCL Optoelectronics module mass production line, achieving stable and continuous operation. This means that China's self-developed air extraction crystallization technology has completed an important leap from research and development verification to 2-meter industrial application, and also provides actual production basis for subsequent equipment iteration and large-scale replication.
After more than ten years of technology accumulation, from original technology research and development, meter-level large-size equipment mass production verification to the formulation of national standards, the R&D team is gradually forming a Chinese original technology-led development path that connects basic research, core technologies, industrial applications, and standard construction.
As next-generation photovoltaic technologies such as perovskite accelerate towards large-scale manufacturing, the consistency, stability and quality control of large-area thin film preparation have become key factors affecting module efficiency, yield and production costs, and have become the biggest bottleneck in perovskite industrialization. The "Technical Specifications for Pumped Crystallization Physical Liquid Phase Deposition Thin Films" compiled this time is to establish basic technical specifications for this specific technical field and fill the gaps in relevant standards.
Yang Guanjun, the original inventor of perovskite pumped crystallization technology and founder of Kaifu Optoelectronics, believes that the standard is intended to establish corresponding technical specifications around the scope of technology application, film quality requirements, equipment and process parameters, detection and evaluation methods, etc., to provide a basis for relevant equipment selection, film manufacturing and quality control.
Industry experts said that the significance of standards lies not only in unifying technical requirements, but also in establishing a common technical foundation for industrial promotion. In the past, many national standards corresponded to the adoption of existing international standards. This standard formulation is based on China's independently developed air extraction crystallization technology and its engineering application, and explores the transformation of China's technological achievements into national standards. It will not only create conditions for China's original technology to further participate in the construction of the international standard system, but also play a more important role in the new generation of photovoltaic manufacturing industry chain.
