Capability of exciplex energy transfer through a spacer was investigated using three exciplex-forming solid mixtures which contained the well-known electron accepting 2,4,6-tris[3-(diphenylphosphinyl)phenyl]-1,3,5-triazine and appropriately designed bipolar cyanocarbazolyl-based derivatives functionalized by attachment of carbazolyl, acridanyl or phenyl units. These novel cyanocarbazolyl-based derivatives were used as both the spacer and exciplex-forming donor. Efficient organic light-emitting diodes with electroluminescence in cyan-yellow region and maximum external quantum efficiency of up to 7.7% were fabricated owing to efficient thermally activated fluorescence (TADF) of the newly discovered exciplexes. An approach of exciton separation by the spacer between the studied exciplexes and selected orange TADF emitter was proposed for the fabrication of white electroluminescent devices with prolonged lifetime comparing to that of single-color exciplex-based devices. Exciplex-forming systems were tested for exciton separation between inter- and intramolecular TADF. Exciplex energy transfer through a spacer was observed on relatively long distance for one system due to the energy resonance between triplet levels of the exciplex and spacer. First time observed here exciplex energy transfer through a spacer can be useful for both improvement of device stability and obtaining of white electroluminescence.

使用三种形成激基复合物的固体混合物研究了激基复合物通过间隔子的能量传递能力，该混合物包含众所周知的电子接受2,4,6-三[3-（二苯基膦基）苯基] -1,3,5-三嗪设计了通过结合咔唑基，a啶基或苯基单元而功能化的基于双极性氰基咔唑基的衍生物。这些新颖的基于氰基咔唑基的衍生物既用作间隔基，又用作形成激基复合物的供体。通过新发现的激基复合物的高效热激活荧光（TADF），制造了具有蓝绿色电致发光且最大外部量子效率高达7.7％的高效有机发光二极管。提出了一种通过研究的激基复合物和选定的橙色TADF发射体之间的间隔物进行激子分离的方法，该方法可用于制造与单色激基复合物相比具有更长寿命的白色电致发光器件。测试了激基复合物形成系统在分子间和分子内TADF之间的激子分离。在一个系统中，由于激基复合物和间隔物的三重态能级之间的能量共振，在相对较长的距离上观察到通过间隔物的激基复合物能量转移。此处首次观察到激基复合物通过间隔子的能量转移对于改善器件稳定性和获得白色电致发光都是有用的。测试了激基复合物形成系统在分子间和分子内TADF之间的激子分离。在一个系统中，由于激基复合物和间隔物的三重态能级之间的能量共振，在相对较长的距离上观察到通过间隔物的激基复合物能量转移。此处首次观察到激基复合物通过间隔子的能量转移对于改善器件稳定性和获得白色电致发光都是有用的。测试了激基复合物形成系统在分子间和分子内TADF之间的激子分离。在一个系统中，由于激基复合物和间隔物的三重态能级之间的能量共振，在相对较长的距离上观察到通过间隔物的激基复合物能量转移。此处首次观察到激基复合物通过间隔子的能量转移对于改善器件稳定性和获得白色电致发光都是有用的。