Steponaitis Matas, Jankauskas Vygintas, Kamarauskas Egidijus, Malinauskienė Vida, Karazhanov Smagul, Malinauskas Tadas, Getautis Vytautas
Department of Organic Chemistry, Kaunas University of Technology, Radvilenu pl. 19, 50254 Kaunas, Lithuania.
Institute of Chemical Physics, Vilnius University, Sauletekio av. 9, 10222 Vilnius, Lithuania.
R Soc Open Sci. 2023 Jul 26;10(7):230260. doi: 10.1098/rsos.230260. eCollection 2023 Jul.
Due to the ease of synthesis and the ability to easily tune properties, organic semiconductors are widely researched and used in many optoelectronic applications. Requirements such as thermal stability, appropriate energy levels and charge-carrier mobility have to be met in order to consider the suitability of an organic semiconductor for a specific application. Balancing of said properties is not a trivial task; often one characteristic is sacrificed to improve the other and therefore a search for well-balanced materials is necessary. Herein, seven new charge-transporting biphenyl-based enamine molecules are reported. The new materials were synthesized using a simple one-step reaction without the use of expensive transition metal catalysts. It was observed that subtle variations in the structure lead to notable changes in the properties. Materials exhibited high thermal stability and relatively high carrier drift mobility, reaching 2 × 10 cmV s (for ) at strong electric fields. Based on the results, three materials show the potential to be applied in organic light emitting diodes and solar cells.
由于合成简便且能够轻松调节性能，有机半导体在许多光电子应用中得到了广泛研究和应用。为了考虑有机半导体对于特定应用的适用性，必须满足诸如热稳定性、合适的能级和电荷载流子迁移率等要求。平衡上述性能并非易事；通常会牺牲一个特性来改善另一个特性，因此有必要寻找性能均衡的材料。在此，报道了七种新型的基于联苯的烯胺电荷传输分子。这些新材料是通过简单的一步反应合成的，无需使用昂贵的过渡金属催化剂。据观察，结构上的细微变化会导致性能上的显著变化。这些材料表现出高热稳定性和相对较高的载流子漂移迁移率，在强电场下达到2×10 cmV s（对于 ）。基于这些结果，三种材料显示出应用于有机发光二极管和太阳能电池的潜力。
