The "Ultra High Efficiency HIT Solar Cell Key Technology Research and Development" project passed

On March 11th, the acceptance meeting for the "Key Technology Research and Development of Ultra High-Efficiency HIT Solar Cells" under the Important Direction Project of the Chinese Academy of Sciences was held at the Shanghai Institute of Microsystem and Information Technology. Liu Guiju, Deputy Director of the Frontier Science and Education Bureau of the Chinese Academy of Sciences, attended the event and delivered a speech. The meeting was chaired by Zhao Huibin, Deputy Director of the Department of Technology. Representatives from the expert group included Academician Hao Junhao from the Shanghai Institute of Technical Physics, Zhao Jianlong, Deputy Director of the Shanghai Institute of Microsystems, Gao Xiuli, Director of the Department of Science and Technology, and Liu Lei, head of the project team. Over 30 members of the project team also participated. Zhao Jianlong, on behalf of the Shanghai Institute of Microsystems, welcomed the visiting leaders and experts. He expressed gratitude to the Chinese Academy of Sciences for its attention to new energy technology development. He emphasized that the establishment of new directions in this field requires forward-looking planning, coordination across levels, government support, and close collaboration between research institutions and enterprises. He also highlighted the hard work of the scientific teams behind the progress. With multiple favorable factors working together, the New Energy Technology Center project is moving smoothly toward its goals. Achieving technical indicators is a crucial step toward commercialization, and he hopes the project team will pass the expert review and continue on the path of industrial development. Liu Zhengxin, the project leader, presented a comprehensive summary of the key technology research and development for ultra-high-efficiency HIT solar cells. Following this, Miao Junhao, head of the expert group, led the questioning session during the acceptance meeting. He praised the innovative cooperation model of the Shanghai Institute of Microsystems, noting the significant technological achievements made within a short time. He suggested that other research units could learn from their approach. After reviewing and discussing the technical and financial information, the expert group reached a consensus: the large-area (12.5×12.5 cm²) crystalline silicon cell developed by the project team achieved an efficiency of 20.13%, with all other technical parameters meeting or exceeding requirements. The use of funds was reasonable and compliant, and the provided documentation was complete. The expert group unanimously approved the project's acceptance. Liu Guiju concluded the meeting by congratulating the team on their successful review. She noted that the team had completed laboratory preparation, equipment introduction, and team building over the past three years. Not only did the project pass the acceptance check, but some of the indicators even exceeded expectations, showing the team’s dedication. Experts provided valuable feedback from both technical and industry perspectives, which will guide future research. The Chinese Academy of Sciences comprises more than 100 research institutes, each focusing on basic, strategic, and forward-looking scientific research. It emphasizes fundamental research while aiming to reach the global scientific frontier. At the same time, it supports projects that bridge the gap between technology and the market, hoping to cultivate technologies through top-level design and eventually bring them to the market, meeting national needs effectively. The “Research and Development of Key Technologies for Ultra-High-Efficiency HIT Solar Cells” is one of the guiding projects and has successfully met its technical and pilot testing targets. Liu Guiju pointed out several important lessons learned from the project: first, maintaining a broad international perspective and good communication with the global community ensures advanced research and reduces unnecessary duplication. Second, a strong production-academia-research-use collaboration mechanism is essential. The team worked closely with leading companies, sharing resources and efforts through joint laboratories. Third, collaborative R&D in process, equipment, and materials is critical. HIT cell technology is complex, and only when these areas develop synergistically can the efficiency bottleneck be broken. Fourth, a solid business model is vital—whether in the R&D or commercialization phase, effective cost management and resource utilization are key to ensuring the project is not only technologically superior but also cost-competitive and ready for the market. She encouraged the team to remain committed to further pilot studies and to face the challenges of the market, ultimately gaining recognition from partners and consumers. During the meeting, leaders and experts toured the New Energy Technology Center’s high-efficiency solar cell R&D platform, CIGS process platform, and rooftop power generation system, gaining firsthand insights into the project’s progress.

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