应用化学 ›› 2021, Vol. 38 ›› Issue (10): 1326-1339.DOI: 10.19894/j.issn.1000-0518.210359

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液晶分子在有机太阳能电池中的应用研究进展

崔永杰1‡, 钟佳鑫1‡, 廖勋凡1,2(), 陈义旺1,2()   

  1. 1东华大学材料科学与工程学院,纤维材料改性国家重点实验室,上海 201620
    2江西师范大学高等研究院,功能有机小分子教育部重点实验室,江西 330022
  • 收稿日期:2021-07-22 接受日期:2021-09-05 出版日期:2021-10-01 发布日期:2021-10-15
  • 通讯作者: 廖勋凡,陈义旺
  • 作者简介:‡共同第一作者
  • 基金资助:
    国家自然科学基金(51973032);中央高校基本科研业务费专项资金、东华大学研究生创新基金(CUSF-DH-D-2021008)

Research Progress of Liquid Crystal Molecules for Application in Organic Solar Cells

Yong-Jie CUI1‡, Jia-Xin ZHONG1‡, Xun-Fan LIAO1,2(), Yi-Wang CHEN1,2()   

  1. 1State Key Laboratory for Modification of Chemical Fibers and Polymer Materials & College of Materials Science and Engineering,Donghua University,Shanghai 201620,China
    2Institute of Advanced Scientific Research (iASR),Key Laboratory of Functional Organic Small Molecules for Ministry of Education,Jiangxi Normal University,Nanchang 330022,China
  • Received:2021-07-22 Accepted:2021-09-05 Published:2021-10-01 Online:2021-10-15
  • Contact: Xun-Fan LIAO,Yi-Wang CHEN
  • About author:ywchen@ncu.edu.cn; xfliao@jxnu.edu.cn
  • Supported by:
    National Natural Science Foundation of China (NSFC)(51973032);the Fundamental Research Funds for the Central Universities and the Graduate Student Innovation Fund of Donghua University(CUSF-DH-D-2021008)

摘要:

液晶分子应用于有机太阳能电池器件是近年来光电领域的研究热点之一。液晶分子是一类兼具晶体和液体性质的功能性软材料,且具有较强的自组装特性。利用液晶分子的光吸收互补可有效调控有机太阳能电池的光吸收范围。此外,液晶分子具有强结晶性,能诱导活性层分子自组装提高其有序性,同时能提高分子结晶性能,从而提高活性层电荷迁移率,最终提高有机太阳能电池器件的短路电流和填充因子。因此,本文从液晶分子在活性层组分中发挥的作用出发,综述了其分别作为有机太阳能电池活性层材料和添加剂的研究进展。最后,对液晶分子在有机太阳能电池应用过程中存在的问题及今后的发展进行了总结和展望。

关键词: 有机太阳能电池, 液晶分子, 有序性, 形貌调控

Abstract:

Application of liquid crystal molecules in organic solar cell (OSC) device is one of the research focuses in the optoelectronic field in recent years. Liquid crystal molecules are a kind of functional soft materials with both crystal and liquid properties, and have strong self-assembly characteristics. The light absorption range of OSCs can be effectively controlled by using the light absorption complementarity of liquid crystal molecules. In addition, the liquid crystal molecules have strong crystallinity, which can induce the self-assembly of active layer molecules to enhance their order, and at the same time improve the molecular crystallization performance, thereby increasing the charge mobility of active layer, and ultimately increasing the short-circuit current (Jsc) and fill factor (FF) of the OSC devices. Therefore, this paper, which starts from the role of liquid molecules in active layer components, reviews the application of liquid crystal molecules as active layer materials and additives for OSCs. Finally, the existing problems and future development of liquid crystal molecules in the application of OSCs are summarized and prospected.

Key words: Organic solar cells, Liquid crystal molecules, Order, Morphology control

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