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2026 26010027

DOI: https://doi.org/10.6023/A26010027

研究论文

添加剂氯化甲铵对FAPbBr3钙钛矿太阳能电池的光伏性能影响研究

  • 文洁 ,
  • 陈洁 ,
  • 郭焕焕 ,
  • 汪佳艳 ,
  • 郑松志 ,
  • 殷逍遥 ,
  • 朱文昊 ,
  • 吴韫佳 ,
  • 孙伟海
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  • a华侨大学材料科学与工程学院 物理化学研究所,环境友好功能材料教育部工程研究中心,福建省光电功能材料重点实验室 厦门 361021;
    b邢台学院化学工程与生物技术学院,河北,邢台,054001

收稿日期: 2026-01-26

  网络出版日期: 2026-08-19

基金资助

国家自然科学基金(No.61804058)和华侨大学中青年教师科研提升资助计划(ZQN-706)

收起

Effect of Additive Methylammonium Chloride on the Photovoltaic Performance of FAPbBr3 Perovskite Solar Cells

  • Wen Jie ,
  • Chen Jie ,
  • Guo Huanhuan ,
  • Wang Jiayan ,
  • Zheng Songzhi ,
  • Yin Xiaoyao ,
  • Zhu Wenhao ,
  • Wu Yunjia ,
  • Sun Weihai
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  • aSchool of Materials Science and Engineering, Huaqiao University, Engineering Research Center of Environment-Friendly Functional Materials, Ministry of Education. Fujian Key Laboratory of Photoelectric Functional Materials, Institute of Materials Physical Chemistry, Xiamen 361021;
    bSchool of Chemical Engineering and Biotechnology, Xingtai University, Hebei 054001

Received date: 2026-01-26

  Online published: 2026-08-19

Supported by

National Natural Science Foundation of China (No.61804058) and Huaqiao University Research Promotion Funding Scheme for Young and Middle-aged Teachers (ZQN-706)

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摘要

近年来,钙钛矿太阳能电池(Perovskite solar cells, PSCs)凭借高效率、低成本、带隙可调等优势,被视为下一代光伏技术的核心竞争者。本研究系统探究了添加剂氯化甲铵(MACl)对FAPbBr3钙钛矿薄膜的结晶动力学调控及对器件光伏性能的影响,旨在通过优化添加剂策略提升电池效率与稳定性。将MACl引入FABr前驱体溶液中,制备了结构为FTO/TiO2/FAPbBr3-MACl/C的太阳能电池器件。通过改变MACl-FABr甲醇溶液中MACl相对于FABr的质量分数来调控FAPbBr3钙钛矿晶体的生长。研究表明当MACl掺杂浓度为10%时制备出了最高开路电压(Open Circuit Voltage, VOC)为1.62 V,短路电流密度(Short Circuit Current Density, JSC)为8.21 mA∙cm-2,填充因子(Fill Factor, FF)为83.73%,光电转换效率(Photoelectric Conversion Efficiency, PCE)达11.14%的最优器件,这一结果代表了FAPbBr₃器件领域的最高水平,优于已报道的所有同类数据。

关键词： FAPbBr3钙钛矿太阳能电池; MACl添加剂; 全溴基钙钛矿; 两步溶液旋涂; 添加剂工程

本文引用格式

文洁 , 陈洁 , 郭焕焕 , 汪佳艳 , 郑松志 , 殷逍遥 , 朱文昊 , 吴韫佳 , 孙伟海 . 添加剂氯化甲铵对FAPbBr3钙钛矿太阳能电池的光伏性能影响研究[J]. 化学学报, 2026 : 26010027 . DOI: 10.6023/A26010027

Abstract

In recent years, perovskite solar cells (PSCs) have been regarded as core competitors in the next generation of photovoltaic technology due to their high efficiency, low cost, and tunable bandgap. Among them, FAPbBr3 perovskite has attracted attention due to its wide bandgap characteristics (~2.23 eV) and high wet heat stability, but its photovoltaic performance is limited by problems such as poor crystal quality, high defect density, and severe carrier recombination. To enhance the performance of FAPbBr3 perovskite solar cells, this study successfully fabricated devices with an FTO/TiO2/FAPbBr3-MACl/C structure by incorporating methylammonium chloride (MACl) into the precursor solution. The effect of MACl mass fraction in the MACl-FABr methanol solution on the crystallization kinetics and film morphology of FAPbBr₃ was systematically investigated. Results indicate that MACl acts as an effective crystallization modulator, facilitating the formation of larger and more uniform grains and producing a compact, pinhole-free film with complete substrate coverage. This structural optimization significantly improved the crystallinity of the perovskite layer, thereby effectively suppressing defect-assisted charge recombination and laying a critical material foundation for enhancing the device's power conversion efficiency.The devices were fabricated using a thin-film deposition process: a TiO₂ electron transport layer was first deposited onto cleaned FTO substrates via treatment with a TiCl4 aqueous solution. A two-step spin-coating procedure was then applied to deposit PbBr2 and FABr solutions sequentially, followed by annealing at 150 °C to form the FAPbBr3 perovskite layer. Finally, a low-temperature carbon paste was screen-printed as the counter electrode and cured. The morphological, structural, and photophysical properties of the films were thoroughly characterized using Scanning Electron Microscopy (SEM), X-ray Diffraction (XRD), UV-visible Spectroscopy (UV-vis), steady-state and time-resolved photoluminescence spectroscopy, and current density-voltage (J-V) measurements. These analyses confirmed that the fabricated devices exhibit high-quality film formation and promising photovoltaic performance. Research shows that when the MACl doping concentration is 10%, an optimal device was fabricated, achieving a record open-circuit voltage (VOC) of 1.62 V, a short-circuit current density (JSC) of 8.21 mA∙cm-2, a fill factor (FF) of 83.73%, and a resulting power conversion efficiency (PCE) of 11.14%, which represents the highest level in the field of FAPbBr₃ devices, outperforming all previously reported data of the same category.

Key words： FAPbBr3 perovskite solar cells; MACl additive; all-bromide perovskite; two-step solution spin coating; additive engineering

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