Nine-ring angular fused biscarbazoloanthracene displaying a solid state based excimer emission suitable for OLED application
作者:Gleb V. Baryshnikov、Pawel Gawrys、Khrystyna Ivaniuk、Bernhard Witulski、Richard J. Whitby、Ayham Al-Muhammad、Boris Minaev、Vladyslav Cherpak、Pavlo Stakhira、Dmytro Volyniuk、Gabriela Wiosna-Salyga、Beata Luszczynska、Algirdas Lazauskas、Sigitas Tamulevicius、Juozas V. Grazulevicius
DOI:10.1039/c6tc01469k
日期:——
nine fused aromatic rings, including two pyrrole units, has been obtained in a straightforward and convergent synthesis. Computational chemistry and conformational analysis revealed that the semiconductor's molecule is not planar, the two carbazole moieties being helical twisted from the plane of the anthracene unit. Photophysical and electrochemical measurements showed that this angular fused heteroacene
一种新的双咔唑并蒽由九个稠合的芳族环组成,包括两个吡咯单元,已通过简单且会聚的合成方法获得。计算化学和构象分析表明,半导体分子不是平面的,两个咔唑部分是从蒽单元的平面螺旋形扭曲的。光物理和电化学测量表明,尽管其扩展的π共轭分子框架,该角型稠合杂并苯具有低的HOMO能级和宽的带隙。基于其相对较低的HOMO水平,与其他相关的线性稠合并苯和杂并苯相比,该半导体具有较高的环境稳定性。双咔唑并蒽已被用作白色发光二极管(WOLED)中的发光层。提出白色OLED特征是由于来自活性半导体层的双重发光特性是基于小分子的分子发光和通过合适的固态聚集体而可能的离散的准分子发射。值得注意的是,这是在小分子杂并苯而不是低聚物或聚合物中观察到的这种行为的第一个报道实例。