化学学报 ›› 2023, Vol. 81 ›› Issue (2): 131-145.DOI: 10.6023/A22110462 上一篇    下一篇

综述

有机太阳能电池热失效机制及三元共混提升其热稳定性研究进展

查汉a,b, 房进b, 闫翎鹏a,c,*(), 杨永珍c,d,*(), 马昌期b,*()   

  1. a 太原理工大学 材料科学与工程学院 太原 030024
    b 中国科学院苏州纳米技术与纳米仿生研究所 创新实验室&印刷电子研究中心 苏州 215123
    c 太原理工大学 新材料界面科学与工程教育部重点实验室 太原 030024
    d 山西浙大新材料与化工研究院 太原 030032
  • 投稿日期:2022-11-14 发布日期:2022-12-23
  • 通讯作者: 闫翎鹏, 杨永珍, 马昌期
  • 作者简介:

    查汉, 太原理工大学材料科学与工程学院2020级硕士研究生, 现于中科院苏州纳米技术与仿生研究所联合培养, 研究方向为有机太阳能电池的衰减机理和稳定性提升.

    闫翎鹏, 太原理工大学副研究员, 工学博士, 硕士研究生导师, 研究方向包括: 有机太阳能电池的衰减机理及其稳定性提升研究, 碳纳米材料制备、功能化及其光电应用.

    杨永珍, 太原理工大学教授, 工学博士, 博士研究生导师, 主要从事纳米碳功能材料、碳基光电材料和生物医药材料的研究. 马昌期, 中国科学院苏州纳米技术与纳米仿生研究所研究员, 中国科学院百人计划研究员, 博士生导师, 主要研究方向包括: 有机光电功能半导体材料与器件, 特别是可印刷光电半导体材料以及印刷制备纳米薄膜光电器件工艺与性能研究.

    马昌期, 中国科学院苏州纳米技术与纳米仿生研究所研究员, 中国科学院百人计划研究员, 博士生导师, 主要研究方向包括: 有机光电功能半导体材料与器件, 特别是可印刷光电半导体材料以及印刷制备纳米薄膜光电器件工艺与性能研究.

  • 基金资助:
    国家自然科学基金(61904121); 国家自然科学基金(22075315); 国家自然科学基金(22109172); 山西浙大新材料与化工研究院科技研发项目(2022SX-TD012); 山西浙大新材料与化工研究院科技研发项目(2021SX-TD012)

Research Progress of Thermal Failure Mechanism and Ternary Blending to Improve Thermal Stability of Organic Solar Cells

Han Zhaa,b, Jin Fangb, Lingpeng Yana,c(), Yongzhen Yangc,d(), Changqi Mab()   

  1. a College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
    b i-Lab & Printable Electronics Research Center, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
    c Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Taiyuan 030024, China
    d Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Taiyuan 030032, China
  • Received:2022-11-14 Published:2022-12-23
  • Contact: Lingpeng Yan, Yongzhen Yang, Changqi Ma
  • Supported by:
    National Natural Science Foundation of China(61904121); National Natural Science Foundation of China(22075315); National Natural Science Foundation of China(22109172); Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering(2022SX-TD012); Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering(2021SX-TD012)

有机太阳能电池(Organic solar cells, OSCs)作为一种新兴高效太阳能电池, 近年来得到飞速发展. 目前OSCs的光电转换效率(Power conversion efficiency, PCE)已经达到19%以上, 初见商业化应用曙光. 但其稳定性方面尚未发展成熟, 尤其在制备和工作过程中电池器件需要经历高温考验, 电池的热稳定性要求高. 三元共混策略是在传统的二元OSCs活性层中引入第三组分, 利用第三组分调控分子间的相互作用, 在实现高效光电转换效率的同时有效提高器件热稳定性, 展现出了极大的应用潜力. 本综述首先从器件热衰减过程出发, 总结了OSCs热衰减过程中包括: 热致活性层形貌变化、各层材料之间的互扩散行为以及界面老化等相关机制. 在此基础上, 重点介绍了三元策略在提高OSCs热稳定性方面的应用进展和作用机制. 最后, 对三元策略在OSCs中的应用发展进行总结并展望, 指出第三组分的针对性选择以及作用机制解析是三元OSCs面临的关键问题和挑战.

关键词: 有机太阳能电池, 热稳定性, 效率, 三元策略

As an emerging high-efficiency solar cell, organic solar cells (OSCs) have been developed rapidly in recent years. The power conversion efficiency (PCE) of OSCs has reached more than 19%, which is the dawn of commercial application. However, the stability of OSCs is not yet satisfied, especially high processing and operation temperature may be applied to the cells, which requires a high thermal stability of the cells. The ternary strategy, where a third component is introduced into the photoactive layer of donor-acceptor based binary OSCs, was found to be able to simultaneously improve device performance and stability by regulating the intermolecular interactions, showing a great potential for application. In this review, we firstly summarized the mechanisms involved in the thermal decay process of OSCs, including thermally induced morphology changes of the photoactive layer, interfacial aging/chemical reactions, and interdiffusion behavior between the layers. Following this, the research progress of the ternary strategies in improving thermal stability are highlighted, and the mechanism for the stabilization effect is reviewed. By the end, the perspective of the ternary strategies in OSCs is given, pointing out that the selection of the proper third component and the understanding on the mechanism of the stabilization effect are the key issues and challenges.

Key words: organic solar cell, thermal stability, efficiency, ternary strategy