Novel phenothiazine derivatives were designed and synthesized for application as electroluminescent materials. They were characterized by means of 1H, 13C NMR and FTIR. The optical, electrochemical and thermal properties were also investigated. The relationship between the chemical structure and the properties of these materials was evaluated. Due to the introduction of thiophene ring, these compounds exhibited efficient emission from blue to green and red shifs in absorption and photoluminescence spectra. With respect to thermal properties and the oxidation potentials, it can be turned by varying the conjugation length of compounds and the length of alkyl chains. Mostly, all four compounds had suited HOMO and LUMO energy levels which can be used not only hole-transporting but also electron-tansporting materials in organic light-emitting devices.
新型苯
噻嗪衍
生物被设计和合成用于作为电致
发光材料。通过1H、13C NMR和FTIR对其进行了表征。还研究了其光学、电
化学和热特性。评估了
化学结构与这些材料性质之间的关系。由于引入了
噻吩环,这些化合物表现出从蓝光到绿色的高效发射,并在吸收和荧光光谱中出现红移。在热性能和氧化电位方面,可以通过改变化合物的共轭长度和烷基链的长度进行调节。总体而言,这四种化合物均具有适宜的HOMO和LUMO能级,可以作为有机发光器件中的孔传输材料和电子传输材料。