Exploring the molecular electronic device applications of synthetically versatile silicon pincer complexes as charge transport and electroluminescent layers
Exploring the molecular electronic device applications of synthetically versatile silicon pincer complexes as charge transport and electroluminescent layers
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DOI：
10.1039/d1ma00737h
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发表时间：
2021-12-28
影响因子：
5
通讯作者：
Walter, Michael G.
中科院分区：
文献类型：
--
作者：
Kocherga, Margaret;Boyle, Kevin M.;Walter, Michael G.
以2，6-二（苯并咪唑-2-基）吡啶（bzimpy）为配体的六配位硅钳形配合物已发展成为一种多功能分子电子材料平台。我们报道了各种具有可调光电性能和优异热稳定性的Si（pincer）（2）配合物的合成、表征和器件应用。有前途的，双极性电荷载流子的性质和准分子电致发光，从热沉积膜使用几种设备架构。掺入的配合物作为一个薄的，界面接触和电子传输层提高了有机太阳能电池的效率高达50%。这类硅配合物的多功能性和可定制性为其在分子电子器件中的未来应用提供了有希望的证据。
Hexacoordinate silicon pincer complexes using 2,6-bis(benzimidazol-2-yl)pyridine (bzimpy) ligands have been developed as a multifunctional, molecular electronic materials platform. We report the synthesis, characterization, and device application of a variety of Si(pincer)(2) complexes that exhibit tunable optoelectronic properties and excellent thermal stabilities. Promising, ambipolar charge carrier properties and excimeric electroluminescence were obtained from thermally deposited films using several device architectures. Incorporation of the complexes as a thin, interfacial contact and electron transport layer improved organic solar cell efficiencies by as much as 50%. The versatility and tailorability of this class of silicon complexes provides promising evidence for their future application in molecular electronic devices.