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π-Linkage effect of push-pull-structure organic small molecules for photovoltaic application

推拉结构有机小分子光伏材料中的π-桥键效应

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Abstract

Much attention has been paid to the push-pullstructure organic small molecule (OSM) materials for photovoltaic (PV) application in the past decade, due to their facile reduction of energy band gap (E g ) and effective control of PV properties. π-bridge plays an important role in the push-pull-structure OSMs since an appropriate π-linkage is crucial for improving the PV performance of organic solar cells (OSCs). In this review, various π-bridge groups (thiophene, alkene, alkyne, arene and heterocycle) and the pertinent π-linkage effect will be systematically summarized. These results suggest that the in-depth study of the π-linkage effect is essential to deeply understanding the relationship between the molecular structure and property, thus improving PV performance.

摘要

在过去的十年中, 推拉结构的有机小分子光伏材料由于分子带隙及光伏性能等易于实现有效的调控, 在光伏领域中受到了广泛的关注, 适宜的桥键联接对于提升有机太阳能电池的光伏性能起到了重要的作用, 因此π-桥键在推拉结构的有机小分子设计中扮演着十分重要的角色. 本文重点综述了推拉机构有机小分子的不同π-桥键(包括噻吩, 烯烃, 炔烃, 芳烃和杂环及其相应的衍生物) 对于材料的光伏性能所产生的重要影响, 这些结果表明,深入的研究π-桥键效应对于深刻理解分子结构和材料性能之间的关系以及通过分子的结构优化来提高材料的光伏性能具有十分重要的意义.

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Authors and Affiliations

  1. School of Chemistry, Dalian University of Technology, Dalian, 116024, China

    Rui Wu  (吴睿), Lunxiang Yin  (殷伦祥) & Yanqin Li  (李艳芹)

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  1. Rui Wu  (吴睿)
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  2. Lunxiang Yin  (殷伦祥)
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  3. Yanqin Li  (李艳芹)
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Correspondence to Yanqin Li  (李艳芹).

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Rui Wu was born in Gansu, China. She earned his BSc degree (2013) in chemistry from Ludong University. She received herMSc degree (2016) in inorganic chemistry fromDalianUniversity of Technology. She joined Prof. Yanqin Li’s group as a postgraduate in 2013 and her research focuses on the design and synthesis of organic small molecule photovoltaic materials.

Lunxiang Yin received his PhD degree in 2005 from Humboldt University (Berlin, Germany). He was then a postdoctoral researcher from2005 to 2007 in the University of California (Davis, USA). He worked as a senior researcher in the National Nanotechnology Laboratory (Lecce, Italy) from 2007 to 2008. He has been an associate professor in Dalian University of Technology (Dalian, China) since 2008. His research focuses on organic synthesis and optoelectronic materials.

Yanqin Li received her Bachelor and PhD degrees from Jilin University in 1995 and 2000, respectively. From 2000 to 2002, she worked in Hongkong University as a research fellow. From 2002 to 2004, she was a postdoctoral fellow at Humboldt University in Berlin of Germany. From 2004 to 2008, she was a senior researcher in the National Nanotechnology Lab of Italy. She was a visiting scholar at the University of California in Berkeley (UC-Berkeley, USA) from 2006 to 2007. She has been a professor at the Department of Chemistry, Dalian University of Technology since 2008. Her current research interest mainly focuses on organic optoelectronic materials and devices.

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Wu, R., Yin, L. & Li, Y. π-Linkage effect of push-pull-structure organic small molecules for photovoltaic application. Sci. China Mater. 59, 371–388 (2016). https://doi.org/10.1007/s40843-016-5050-7

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  • DOI: https://doi.org/10.1007/s40843-016-5050-7

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