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Peripheral Substitution of Tetraphenyl Porphyrins: Fine-Tuning Self-Assembly for Enhanced Electroluminescence.
ChemPlusChem ( IF 3.4 ) Pub Date : 2017-12-08 , DOI: 10.1002/cplu.201700416
Asterios Charisiadis 1 , Anthi Bagaki 1 , Elisa Fresta 2 , Katharina T Weber 3 , Georgios Charalambidis 1 , Christina Stangel 1 , Antonios G Hatzidimitriou 4 , Panagiotis A Angaridis 4 , Athanassios G Coutsolelos 1 , Rubén D Costa 2, 3
Affiliation  

This study reports the synthesis of two novel zinc porphyrin families bearing four or eight alkoxy chains at their peripheral phenyl rings, with the length of the alkoxy chains ranging from 2, to 6, and to 12 carbon atoms. All zinc porphyrin derivatives were fully characterized with respect to their photophysical and electrochemical features. The zinc porphyrins could be processed into thin films which, depending on the length of the alkoxy chains on the aryl substituents, were found to be either of an ordered or a disordered nature, as it is revealed by spectroscopic and microscopic techniques. The films containing ordered self-assemblies displayed significantly enhanced electrical conductivity compared to the disordered films. This led to remarkable differences regarding their electroluminescence response that occurs at lower bias. Furthermore, their luminous efficiency was of almost one order of magnitude higher than that of disordered films.

中文翻译:

四苯基卟啉的外围取代:用于增强电致发光的微调自组装。

这项研究报告了两个新颖的锌卟啉家族的合成,这些家族在其外围苯环上带有四个或八个烷氧基链,烷氧基链的长度范围为2至6和12个碳原子。所有锌卟啉衍生物均已就其光物理和电化学特性进行了充分表征。卟啉锌可以加工成薄膜,这取决于芳基取代基上的烷氧基链的长度,被发现是有序或无序的,正如通过光谱和显微技术所揭示的那样。与无序膜相比,包含有序自组装的膜显示出显着增强的电导率。这导致了在较低偏压下发生的电致发光响应的显着差异。此外,
更新日期:2017-12-08
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