南京大学发表最新Science论文

Core Viewpoint - The commercialization of perovskite photovoltaic technology faces three key obstacles: the use of toxic solvents during manufacturing, the issue of uneven quality in large-area perovskite films, and limited operational reliability [3][6]. Group 1: Research Development - A research team from Nanjing University, in collaboration with the National Defense Science and Technology Innovation Research Institute and other researchers, published a paper in the journal Science, detailing the development of a three-component green solvent system for the preparation of commercially viable perovskite photovoltaic modules [3][5]. - The new solvent system, based on γ-valerolactone, 2-methyltetrahydrofuran, and dimethyl sulfoxide, replaces toxic solvents like N,N-dimethylformamide and optimizes the evaporation rate of the film's edge regions through the addition of surfactants [5]. Group 2: Performance Metrics - The research team successfully produced a stable perovskite photovoltaic module with an area of 7200 square centimeters, achieving a certified power conversion efficiency of 17.2% by the U.S. National Renewable Energy Laboratory [5]. - The module passed all IEC 61215 reliability standard tests, receiving certification from TÜV Rheinland [5]. Group 3: Environmental Impact - This research opens an environmentally friendly pathway for the commercial production of perovskite photovoltaic technology [6].