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首页> 美国卫生研究院文献>Scientific Reports >Methoxydiphenylamine-substituted fluorene derivatives as hole transporting materials: role of molecular interaction on device photovoltaic performance
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Methoxydiphenylamine-substituted fluorene derivatives as hole transporting materials: role of molecular interaction on device photovoltaic performance

机译：甲氧基二苯胺取代的芴衍生物作为空穴传输材料：分子相互作用对器件光伏性能的作用

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The molecular structure of the hole transporting material (HTM) play an important role in hole extraction in a perovskite solar cells. It has a significant influence on the molecular planarity, energy level, and charge transport properties. Understanding the relationship between the chemical structure of the HTM's and perovskite solar cells (PSCs) performance is crucial for the continued development of the efficient organic charge transporting materials. Using molecular engineering approach we have constructed a series of the hole transporting materials with strategically placed aliphatic substituents to investigate the relationship between the chemical structure of the HTMs and the photovoltaic performance. PSCs employing the investigated HTMs demonstrate power conversion efficiency values in the range of 9% to 16.8% highlighting the importance of the optimal molecular structure. An inappropriately placed side group could compromise the device performance. Due to the ease of synthesis and moieties employed in its construction, it offers a wide range of possible structural modifications. This class of molecules has a great potential for structural optimization in order to realize simple and efficient small molecule based HTMs for perovskite solar cells application.
机译：空穴传输材料（HTM）的分子结构在钙钛矿太阳能电池的空穴提取中起着重要作用。它对分子的平面性，能级和电荷传输性质有重大影响。理解HTM的化学结构与钙钛矿型太阳能电池（PSC）性能之间的关系对于高效开发有机电荷传输材料至关重要。使用分子工程方法，我们构建了一系列具有战略意义的脂族取代基的空穴传输材料，以研究HTM的化学结构与光伏性能之间的关系。使用所研究的HTM的PSC的功率转换效率值在9％至16.8％之间，突显了最佳分子结构的重要性。侧组放置不当可能会损害设备性能。由于其构造中易于合成和使用部分，它提供了多种可能的结构修饰。此类分子具有巨大的结构优化潜力，可以实现钙钛矿太阳能电池应用中基于简单有效的基于小分子的HTM。

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