采用MoO3阳极缓冲层的钙钛矿太阳能电池研究

摘要

采用热蒸发法沉积无毒、稳定、价廉的无机氧化物MoO3,将其作为钙钛矿电池的阳极缓冲层.结果表明,MoO3阳极缓冲层的引入有利于增强光吸收层到阳极的空穴提取效率,使电池的短路电流密度(Jsc)和填充因子(FF)均有较大幅度提高,取得了9.96%的平均光电转换效率(PCE).此外,实验发现,MoO3阳极缓冲层可以阻挡酸性的PEDOT:PSS对ITO的腐蚀,有利于增强电池的稳定性.%The inorganic oxide MoO3thin films were prepared by thermal evaporation deposition method,and used as an anode buffer layer for PHJ perovskite solar cells. The results show that the MoO3anode buffer layer can enhance the hole extraction efficiency from the light absorption layer to the anode,and benefit the improvement of the short-circuit current (Jsc) density and the fill factor (FF) of the solar cells. An average power conversion efficiency (PCE) of 9.96% is achieved fi-nally for the solar cells with a MoO3anode buffer layer. In addition, the results also show that the MoO3anode buffer layer can hinder the corrosion of ITO by acidic PEDOT:PSS and improve the sta-bility of the solar cells.