近红外非富勒烯受体材料在有机太阳电池中的研究进展

Research Progress of Near-Infrared Nonfullerene Acceptor Materials in Organic Solar Cells

摘要:

有机太阳电池（OSCs）因具有质轻、可制备柔性、半透明器件等独特优势，在光伏建筑、新能源汽车及农业等领域中具有广阔的应用前景。近几年，通过优化给体和受体材料匹配，有机太阳电池的效率不断取得新突破。其中，近红外非富勒烯受体（NIR NFAs）材料由于在近红外区域具有较强的光子吸收能力，使光伏器件能产生很高的光电流，成为了目前的研究热点。综述了近红外非富勒烯受体材料在有机太阳电池中的研究进展，探讨了近红外非富勒烯受体材料的分子设计策略，分析了材料结构与性能之间的构效关系，介绍了该材料在三元和叠层有机太阳电池中的应用潜力。最后，从材料稳定性和制备成本两方面对未来近红外非富勒烯受体的设计进行了展望。

Abstract:

Organic solar cells （OSCs） have broad application prospects in the fields of photovoltaic buildings， new energy ve-hicles， and agriculture due to their unique advantages such as light weight， and the ability to prepare flexible and translucent de-vices. In recent years， breakthroughs have been achieved in the power conversion efficiencies （PCEs） of OSCs by optimizing the matching of donor and acceptor materials. Among them， near-infrared non-fullerene acceptor （NIR NFA） materials have become a current research hotspot due to their strong photon absorption ability in the near-infrared （NIR） region， which en-ables the photovoltaic devices to generate high photocurrents. This paper reviews the research progress of NIR NFA materials in OSCs， demonstrates the molecular design strategy of NIR NFA materials， analyzes the conformational relationship between the structure and performance of the materials， and describes the potential application of the materials in ternary and stacked OSCs. Finally， the future design of NIR NFA materials is prospected in terms of the material stability and preparation cost.