钙钛矿薄膜生产两大难题攻克

Core Insights - The research team from Nanjing University, in collaboration with Renshuo Solar (Suzhou) Co., Ltd., has achieved significant breakthroughs in the production of perovskite solar cells, addressing challenges related to green solvent preparation and uniformity in film production [1][2] - Perovskite solar cells are recognized as a promising next-generation photovoltaic technology due to their low cost, high efficiency, low energy consumption, and flexible manufacturing capabilities, making them crucial for the green transition of energy structures [1] - The team has developed a mixed green solvent system and an innovative manufacturing process that enhances environmental friendliness during the production of perovskite photovoltaic components [1] Research and Development - The innovative mixed green solvent system consists of γ-valerolactone, dimethyl sulfoxide, and 2-methyltetrahydrofuran, which contributes to the environmental sustainability of the manufacturing process [1] - To overcome the "edge effect" that leads to poor crystallization quality at the edges of large-area perovskite films, the team introduced a "solvent-limited edge protection" strategy, ensuring uniform solvent evaporation across different regions of the film [1] Commercialization and Performance - The research team successfully produced a commercial perovskite photovoltaic module measuring 0.72 square meters, achieving a steady-state power conversion efficiency of 17.2%, setting a world record for 2024 [2] - This advancement is seen as a critical step towards the commercialization of perovskite solar cells, with the technology currently operating stably on a 150 megawatt pilot production line [2]