Modular Synthesis of Aromatic Hydrocarbon Macrocycles for Simplified, Single-Layer Organic Light-Emitting Devices
Modular Synthesis of Aromatic Hydrocarbon Macrocycles for Simplified, Single-Layer Organic Light-Emitting Devices
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DOI：
10.1021/acs.joc.5b02620
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发表时间：
2016-01-15
影响因子：
3.6
通讯作者：
Isobe, Hiroyuki
中科院分区：
文献类型：
--
作者：
Ikemoto, Koki;Yoshii, Asami;Isobe, Hiroyuki
发展了一种用于单层有机电致发光器件基底材料的芳烃大环化合物的模块化合成方法。Ir催化的直接C-H硼基化和Suzuki-Miyaura偶联的方法是简洁和可扩展的，其允许在外围具有大体积取代基的芳烃大环的克级制备。新的芳基化的烃大环化合物能够在具有磷光发射体的有机发光器件中实现定量电光转换，值得注意的是，磷光发射体是由掺杂和未掺杂材料的两个区域组成的单层结构。最高的外量子效率达到24.8%，超过了以前的烃类材料。
A method for the modular synthesis of aromatic hydrocarbon macrocycles has been developed for base materials in single-layer organic light-emitting devices. The method with Ir-catalyzed direct C-H borylation and Suzuki-Miyaura coupling was concise and scalable, which allowed for a gram-scale preparation of aromatic hydrocarbon macrocycles that have bulky substituents at the periphery. The new arylated hydrocarbon macrocycles enabled a quantitative electro-optical conversion in organic light-emitting devices with a phosphorescent emitter, which is, notably, in a single-layer architecture consisting of two regions of doped and undoped materials. The highest external quantum efficiencies reached 24.8%, surpassing those of previous hydrocarbon base materials.