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Anthracene derivative based multifunctional liquid crystal materials for optoelectronic devices
Materials Chemistry Frontiers ( IF 6.0 ) Pub Date : 2020/02/24 , DOI: 10.1039/d0qm00038h Yunrui Wang 1, 2, 3, 4 , Daqi Fang 1, 2, 3, 4 , Tianchen Fu 1, 2, 3, 4 , Muhammad Umair Ali 1, 2, 3, 4, 5 , Yuhao Shi 1, 2, 3, 4 , Yaowu He 1, 2, 3, 4 , Zhao Hu 6, 7, 8 , Chaoyi Yan 1, 2, 3, 4 , Zongwei Mei 1, 2, 3, 4 , Hong Meng 1, 2, 3, 4
Materials Chemistry Frontiers ( IF 6.0 ) Pub Date : 2020/02/24 , DOI: 10.1039/d0qm00038h Yunrui Wang 1, 2, 3, 4 , Daqi Fang 1, 2, 3, 4 , Tianchen Fu 1, 2, 3, 4 , Muhammad Umair Ali 1, 2, 3, 4, 5 , Yuhao Shi 1, 2, 3, 4 , Yaowu He 1, 2, 3, 4 , Zhao Hu 6, 7, 8 , Chaoyi Yan 1, 2, 3, 4 , Zongwei Mei 1, 2, 3, 4 , Hong Meng 1, 2, 3, 4
Affiliation
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Device integration is among the current research trends in the area of organic electronics and the development of multifunctional materials is crucial to accelerate the progress of integrated devices, such as organic light-emitting transistors (OLET), organic field-effect optical waveguides (OFEW) and organic electrofluorochromic (OEFC) devices. Herein, two multifunctional materials with different side chains, 2-(4-octyloxyphenyl)anthracene (AntPh-OC8) and 2-(4-octylphenyl)anthracene (AntPh-C8), based on the concept of combining liquid crystal (LC) materials featuring facile processability, highly ordered alignment and effective charge transport and an anthracene conjugated core with strong fluorescence, are designed and successfully synthesized. The photoluminescence quantum yield (PLQY) of AntPh-OC8 and AntPh-C8 is determined to be 40.9% and 37.6%, respectively, which approaches nearly 2-fold that of 2-phenylanthracene (AntPh). Organic light-emitting diodes (OLED) based on AntPh-OC8 confirmed its solid-state blue emission with a current efficiency (CE) of 1.82 cd A−1, whereas the corresponding organic field-effect transistors (OFET) demonstrated the highest hole mobility of up to 2.59 cm2 V−1 s−1. Organic phototransistors (OPT) comprising AntPh-OC8 and AntPh-C8 revealed efficient photoresponsive characteristics of these newly developed materials. These demonstrations indicate the widespread potential of our newly developed materials for applications in multifunctional integrated devices. Moreover, these results indicate the encouraging role of side-chain engineering in the improvement of charge transport and fluorescence characteristics of anthracene derivatives.
中文翻译：
用于光电器件的蒽衍生物基多功能液晶材料
器件集成是有机电子领域当前的研究趋势之一，多功能材料的开发对于加速集成器件的发展至关重要，例如有机发光晶体管（OLET），有机场效应光波导（OFEW）以及有机电致变色（OEFC）器件。本文中，具有不同侧链的两种多功能材料，即2-（4-辛基氧基苯基）蒽（AntPh-OC8）和2-（4-辛基苯基）蒽（AntPh-C8），基于将具有易加工性，高度有序排列和有效电荷传输的液晶材料与具有强荧光的蒽共轭核相结合的概念，进行了设计和成功合成。AntPh-OC8和AntPh-C8的光致发光量子产率（PLQY）分别确定为40.9％和37.6％，接近2-苯基蒽（AntPh）的2倍。基于AntPh-OC8的有机发光二极管（OLED）确认其固态蓝光发射，电流效率（CE）为1.82 cd A -1，而相应的有机场效应晶体管（OFET）表现出最高的空穴迁移率高达2.59厘米2 V -1 s -1。包含AntPh-OC8和AntPh-C8的有机光电晶体管（OPT）揭示了这些新开发材料的有效光响应特性。这些演示表明我们新开发的材料在多功能集成设备中的广泛应用潜力。此外，这些结果表明侧链工程在蒽衍生物的电荷传输和荧光特性的改善中具有令人鼓舞的作用。
更新日期：2020-03-04
中文翻译：
用于光电器件的蒽衍生物基多功能液晶材料
器件集成是有机电子领域当前的研究趋势之一，多功能材料的开发对于加速集成器件的发展至关重要，例如有机发光晶体管（OLET），有机场效应光波导（OFEW）以及有机电致变色（OEFC）器件。本文中，具有不同侧链的两种多功能材料，即2-（4-辛基氧基苯基）蒽（AntPh-OC8）和2-（4-辛基苯基）蒽（AntPh-C8），基于将具有易加工性，高度有序排列和有效电荷传输的液晶材料与具有强荧光的蒽共轭核相结合的概念，进行了设计和成功合成。AntPh-OC8和AntPh-C8的光致发光量子产率（PLQY）分别确定为40.9％和37.6％，接近2-苯基蒽（AntPh）的2倍。基于AntPh-OC8的有机发光二极管（OLED）确认其固态蓝光发射，电流效率（CE）为1.82 cd A -1，而相应的有机场效应晶体管（OFET）表现出最高的空穴迁移率高达2.59厘米2 V -1 s -1。包含AntPh-OC8和AntPh-C8的有机光电晶体管（OPT）揭示了这些新开发材料的有效光响应特性。这些演示表明我们新开发的材料在多功能集成设备中的广泛应用潜力。此外，这些结果表明侧链工程在蒽衍生物的电荷传输和荧光特性的改善中具有令人鼓舞的作用。
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