New cyanopyridine-based pi-conjugative poly(azomethine)s: Synthesis, characterization and electroluminescence studies

Pilicode Naveenchandra; Naik Praveen; Nimith K. M.; Acharya Madhukara; Satyanarayan M. N.; Adhikari Airody Vasudeva

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New cyanopyridine-based pi-conjugative poly(azomethine)s: Synthesis, characterization and electroluminescence studies

机译：基于新的基于氰基吡啶的PI-缀合性聚（Azomethine）S：合成，表征和电致发光研究

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Four new Schiff-base type conjugative polymers (CPs), that is,Py(1-4)carrying a strong electron-withdrawing cyanopyridine scaffold coupled with different electron-donating aromatic/heteroaromatic moieties were synthesized from their respective co-monomers by simple poly-condensation route. They were subjected to structural, thermal, photophysical, and electrochemical characterizations and theoretical investigations in order to identify their suitability in polymer light-emitting diode (PLED) application. All these polymers showed good film-forming ability and exhibited favorable photophysical behaviors with an optical bandgap in the order of 2.54-2.68 eV. Further, their electrochemical data were used to evaluate highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) levels. Finally,Py(1-4)were successfully employed as blue-light emitter in the construction of new ITO/PEDOT:PSS/Py1-4/Al configured light-emitting diodes (LED), and the fabricated devices demonstrated stable blue electroluminescence behavior endorsing an effective electrons injection in the PLEDs.

机译：通过简单的聚缩合路线，从它们各自的共聚单体合成了四种新的席夫碱型共轭聚合物（CPs），即Py（1-4），其带有强吸电子氰基吡啶支架，并与不同的给电子芳香族/杂芳香族部分偶联。对它们进行了结构、热、光物理和电化学表征和理论研究，以确定它们在聚合物发光二极管（PLED）应用中的适用性。所有这些聚合物均表现出良好的成膜能力，并表现出良好的光物理行为，光学带隙约为2.54-2.68 eV。此外，他们的电化学数据用于评估最高占据分子轨道（HOMO）和最低未占据分子轨道（LUMO）水平。最后，Py（1-4）被成功地用作新的ITO/PEDOT:PSS/Py1-4/Al配置发光二极管（LED）的蓝光发射体，并且所制备的器件表现出稳定的蓝光电致发光行为，支持PLED中的有效电子注入。

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来源
《Polymers for advanced technologies》 |2021年第1期|共11页
作者
Pilicode Naveenchandra; Naik Praveen; Nimith K. M.; Acharya Madhukara; Satyanarayan M. N.; Adhikari Airody Vasudeva;
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作者单位

Natl Inst Technol Dept Chem Organ Mat Lab Mangalore Karnataka India;

Natl Inst Technol Dept Chem Organ Mat Lab Mangalore Karnataka India;

Natl Inst Technol Karnataka Dept Phys Mangalore Karnataka India;

Natl Inst Technol Dept Chem Organ Mat Lab Mangalore Karnataka India;

Natl Inst Technol Karnataka Dept Phys Mangalore Karnataka India;

Natl Inst Technol Dept Chem Organ Mat Lab Mangalore Karnataka India;

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原文格式 PDF
正文语种 eng
中图分类高分子化合物工业（高聚物工业）;高分子化学（高聚物）;
关键词
blue light emitter; Cyanopyridine; electroluminescence; PLEDs; poly(azomethine);

机译：蓝光发射器;氰基吡啶;电致发光;镀层;聚（氮杂菊）;

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New cyanopyridine-based pi-conjugative poly(azomethine)s: Synthesis, characterization and electroluminescence studies

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