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Fluoranthene-Based Molecules as Electron Transport and Blue Fluorescent Materials for Organic Light-Emitting Diodes
The Journal of Physical Chemistry C ( IF 3.3 ) Pub Date : 2015-08-10 00:00:00 , DOI: 10.1021/acs.jpcc.5b03717 Shiv Kumar 1 , Satish Patil 1
The Journal of Physical Chemistry C ( IF 3.3 ) Pub Date : 2015-08-10 00:00:00 , DOI: 10.1021/acs.jpcc.5b03717 Shiv Kumar 1 , Satish Patil 1
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Herein we report the synthesis, characterization, and potential application of bis(4-(7,9,10-triphenylfluoranthen-8-yl)phenyl)sulfone (TPFDPSO2) and 2,8-bis(7,9,10-triphenylfluoranthen-8-yl)dibenzo[b,d]thiophene 5,5-dioxide (TPFDBTO2) as electron transport as well as light-emitting materials. These fluoranthene derivatives were synthesized by oxidation of their corresponding parent sulfide compounds, which were prepared via Diels–Alder reaction. These materials exhibit deep blue fluorescence emission in both solution and thin film, high photoluminescence quantum yield (PLQY), thermal and electrochemical stability over a wide potential range. Hole- and electron-only devices were fabricated to study the charge transport characteristics, and predominant electron transport property comparable with that of a well-known electron transport material, Alq3, was observed. Furthermore, bilayer electroluminescent devices were fabricated utilizing these fluoranthene derivatives as electron transport as well as emitting layer, and device performance was compared with that of their parent sulfide molecules. The electroluminescence (EL) devices fabricated with these molecules displayed bright sky blue color emission and 5-fold improvement in external quantum efficiency (EQE) with respect to their parent compounds.
中文翻译：
氟蒽基分子作为有机发光二极管的电子传输和蓝色荧光材料
在这里，我们报告双（4-（7,9,10-三苯基芴基-8-基）苯基）砜（TPFDPSO2）和2,8-双（7,9,10-三苯基芴基- 8-基）二苯并[ b，d5，5-二氧噻吩（TPFDBTO2）作为电子传输以及发光材料。这些荧蒽衍生物是通过相应的母体硫化物氧化而合成的，这些母体硫化物是通过Diels-Alder反应制备的。这些材料在溶液和薄膜中均显示深蓝色荧光发射，在宽的电位范围内具有高的光致发光量子产率（PLQY），热稳定性和电化学稳定性。制备了仅空穴和电子的器件，以研究其电荷传输特性以及与已知的电子传输材料Alq 3相当的主要电子传输性能， 被观测到。此外，利用这些荧蒽衍生物作为电子传输层和发射层来制造双层电致发光器件，并将器件性能与其母体硫化物分子的性能进行了比较。用这些分子制造的电致发光（EL）器件显示出明亮的天蓝色发射光，并且相对于其母体化合物，其外部量子效率（EQE）提高了5倍。
更新日期：2015-08-10
中文翻译：
氟蒽基分子作为有机发光二极管的电子传输和蓝色荧光材料
在这里，我们报告双（4-（7,9,10-三苯基芴基-8-基）苯基）砜（TPFDPSO2）和2,8-双（7,9,10-三苯基芴基- 8-基）二苯并[ b，d5，5-二氧噻吩（TPFDBTO2）作为电子传输以及发光材料。这些荧蒽衍生物是通过相应的母体硫化物氧化而合成的，这些母体硫化物是通过Diels-Alder反应制备的。这些材料在溶液和薄膜中均显示深蓝色荧光发射，在宽的电位范围内具有高的光致发光量子产率（PLQY），热稳定性和电化学稳定性。制备了仅空穴和电子的器件，以研究其电荷传输特性以及与已知的电子传输材料Alq 3相当的主要电子传输性能， 被观测到。此外，利用这些荧蒽衍生物作为电子传输层和发射层来制造双层电致发光器件，并将器件性能与其母体硫化物分子的性能进行了比较。用这些分子制造的电致发光（EL）器件显示出明亮的天蓝色发射光，并且相对于其母体化合物，其外部量子效率（EQE）提高了5倍。
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