基于綠色溶劑的鈣鈦礦薄膜一步法制備技術(shù)研究

關(guān)鍵詞：鈣鈦礦；一步法；綠色溶劑；退火工藝中圖分類號(hào)：TM914 文獻(xiàn)標(biāo)志碼：ADOI：10.19968/j.cnki.hnkj.1003-5168.2025.07.015文章編號(hào)：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

光吸收層的質(zhì)量是影響鈣鈦礦太陽(yáng)能電池性能的主要因素，甲銨碘基鈣鈦礦[] （ 和甲碘基鈣鈦礦[2] ）是常用的鈣鈦礦太陽(yáng)能電池光吸收層材料。（剩余6577字）