高效钙钛矿太阳能电池吸光层的设计与优化

本文设计了多元混合钙钛矿吸光层涂布液配方,并采用两步法组装了钙钛矿电池器件。由于两步法制备钙钛矿吸光层存在配方和工艺相对复杂的问题,导致电池器件性能难以提升,因此,本文采用正交实验的方法,筛选出影响电池器件性能的关键因素。针对关键因素设计了系列实验,通过观察钙钛矿层薄膜形貌,测试钙钛矿太阳能电池器件的光电性能,并采用多种表征手段研究了钙钛矿层薄膜性质,确定了关键因素的添加量,最后优选出钙钛矿电池吸光层的最佳配方,得到高质量的钙钛矿薄膜,电池的光电转换效率达到21.1%。

Design and Optimization of High-efficiency Perovskite Solar Cell Absorption Layer

In this paper,a multi-component mixed perovskite light-absorbing layer coating solution was designed,and a perovskite solar cell device was assembled by a two-step method.Due to the two-step preparation of the perovskite solar cell,there were problems of complicated formula and various process flow,which affected the further improvement of the cell device performance.Therefore,the orthogonal experimental method was adopted in this paper to screen out the key factors affecting the performance of the cell devices.A series of experiments were designed for the key factors.The photoelectric properties of the perovskite solar cell devices were tested by observing the morphology of the perovskite film.The properties of the perovskite film were studied by various characterization methods,and the key factors were determined.Finally,the optimal formula of the light-absorption layer of the perovskite solar cell was selected,and a high quality perovskite film was obtained,and the photoelectric conversion efficiency of the perovskite solar cell reached 21.1%.