有机小分子免掺杂空穴传输材料的研究进展

Research progress in doping-free hole transport materials for small organic molecules

近年来,钙钛矿太阳能电池(PSCs)的研究取得了突飞猛进的发展,空穴传输材料(HTM)对于实现高效PSCs至关重要.但受环境因素制约,HTM经常需要进行掺杂用以辅助PSCs.因此设计合成免掺杂HTM是目前研究的重点.本文整理了目前发表的免掺杂小分子HTM的文章,根据不同官能团进行分类讨论,归纳总结不同结构不同官能团对材料本身以及器件性能的影响.希望通过此综述可以为免掺杂小分子HTM设计提供思路,加快PSCs商业化进程.

In recent years,perovskite solar cells(PSCs)have made leaps and bounds,among them,hole transport materials(HTM)are crucial for realizing efficient PSCs.However,due to environmental factors,HTM often needs dopants.Therefore,the design and synthesis of doping-free HTM is the focus of current research.In this paper,the published articles on doping-free small molecule HTM are sorted and discussed according to different functional groups,and the influences of different functional groups with different structures on the material itself and device performance are summarized.It is hoped that this review can provide ideas for the design of doping-free small molecule HTM and accelerate the commercialization process of PSCs.