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文章编号：1672-6987（2024）02-0047-09；DOI：10.16351/j.1672-6987.2024.02.006

李冰昱， 文丽荣， 周忠敏*(青岛科技大学 化学与分子工程学院， 山东 青岛266042)

摘要： 为了调节钙钛矿薄膜的结晶动力学，降低其缺陷浓度，六氟磷酸甲胺（MAPF6）作为添加剂被引入钙钛矿前驱体溶液。傅里叶变换红外（FT-IR）和稳态发光（PL）光谱表明MAPF6和钙钛矿之间存在氢键作用。通过X-射线衍射（XRD）、扫描电镜（SEM）和空间电荷限制电流（SCLC）等表征发现，引入MAPF6之后，钙钛矿薄膜的晶粒尺寸变大，结晶度提高，缺陷浓度降低。最终，加入添加剂的器件效率得到提升，从2077%（参比器件）提升至2245%。

关键词： 缺陷钝化； 氢键； 钙钛矿太阳能电池； 离子液体

中图分类号：TM 914.4文献标志码：A

引用格式： 李冰昱， 文丽荣， 周忠敏.通过氢键调节钙钛矿结晶制备高性能的太阳能电池［J］.青岛科技大学学报(自然科学版), 2024, 45（2）：47-55.

LI Bingyu，WEN Lirong，ZHOU Zhongmin. Modulation of perovskite crystallization using hydrogen bonding for high-performance solar cells［J］. Journal of Qingdao University of Science and Technology（Natural Science Edition), 2024，45（2）：47-55.

Modulation of Perovskite Crystallization Using Hydrogen

Bonding for High-Performance Solar Cells

LI Bingyu，WEN Lirong，ZHOU Zhongmin

（College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology，Qingdao 266042，China）

Abstract: In order to modulate the crystallization kinetics of perovskite film and reduce its defect density, methylamine hexafluorophosphorate (MAPF6) as an additive was introduced into the perovskite precursor solution. Fourier transform infrared (FT-IR) and steady-state luminescence (PL) spectra showed that there was hydrogen bonding between MAPF6 and perovskite. By conducting X-ray diffraction (XRD), scanning electron microscopy (SEM) and space charge limited current (SCLC) characterizations, we found that the introduction of MAPF6 increased the grain size and crystallinity, and reduced defect density of perovskite film. As a result, the efficiency of MAPF6-treated device was greatly improved from 2077% (reference device) to 2245%.

Key words: defects passivation; hydrogen bonding; perovskite solar cells; ionic liquid

收稿日期：2023-04-05

基金项目： 山东省泰山学者项目(201909121).

作者简介： 李冰昱(1997—),男,硕士研究生.*通信联系人.