基于绿色溶剂的钙钛矿薄膜一步法制备技术研究

关键词：钙钛矿；一步法；绿色溶剂；退火工艺中图分类号：TM914 文献标志码：ADOI：10.19968/j.cnki.hnkj.1003-5168.2025.07.015文章编号：1003-5168（2025）07-0077-07

Research onOne-step Preparation TechnologyofPerovskiteFilms Based onGreen Solvents

JIN Guo1 GUO Ding1YAN Qi² （1.Henan Polytechnic Institute，Nanyang 473Ooo，China; 2.State Grid Nanyang Power Supply Company，Nanyang 473OOo，China）

Abstract：[Purposes]In order to solvethe solvent toxicity problem existing in the industrial production of the one-step solution deposition method，the application of green solvents and anti-solvents in the preparation process of perovskite films has been studied.[Methods] Based on the Hansen solubility parameter theory，appropriate green solvents were selected for the preparation of MAPbI 2 . 1 a films on the basis of the traditional one-step preparation process.The annealing temperature and annealing time during the preparation process were adjusted to analyze the impact of process optimization on the properties of MAPbl a films.[Findings] The composite solvent DEC ⋅ ⋅ MOPA and the single solvent DEC can be used as solvents and anti-solvents for the preparation of MAPbl a films by the one-step method. Under the annealing conditions of for 30 minutes， films with the optimal properties such as crystal structure，surface morphology and defect state density were obtained.The PCE value of perovskite solar cells based on the optimized one-step method reached 1 5 . 3 6 % . [Conclusions] Compared with the traditional one-step preparation process，the optimized one-step method has reduced the degree of environmental pollution caused by toxic solvents.The films possess higher filmformingquality，which has guidance significance for the large-scale industrial application of perovskite films.

Keywords： perovskite; one-step method; green solvent; annealing process

0 引言

光吸收层的质量是影响钙钛矿太阳能电池性能的主要因素，甲铵碘基钙钛矿[] （ 和甲碘基钙钛矿[2] ）是常用的钙钛矿太阳能电池光吸收层材料。（剩余6577字）