p‐ or n‐Dopants have played significant roles in the improvement of organic electronic devices through the controllable doping of organic semiconductors. However, there has been little study of air‐stable n‐dopants under ambient conditions with strong doping capability due to the low electron affinities of organic semiconductors. Herein, a 1,4‐dihydropyridine‐based derivative is designed and facilely synthesized as an efficient n‐dopant. The doping process is systematically investigated by UV–vis–NIR spectroscopy in solution and ultraviolet photoelectron spectroscopy in the solid state. Excellent conductivities are obtained for a variety of doped n‐type semiconductors via a simple solution process without further treatment, suggesting a broad class of 1,4‐dihydropyridine derivatives could be used as n‐dopants in future organic electronic devices.

中文翻译：

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基于1,4-二氢吡啶基团的新型可溶液处理的n型掺杂剂，用于有机半导体的高电导率

p或n掺杂剂通过可控的有机半导体掺杂在改善有机电子设备中发挥了重要作用。然而，由于有机半导体的电子亲和力低，在环境条件下具有强掺杂能力的空气稳定n型掺杂剂的研究很少。在此，设计并轻松合成了基于1,4-二氢吡啶的衍生物，作为有效的n-掺杂剂。通过溶液中的紫外-可见-近红外光谱和固态的紫外光电子能谱系统地研究了掺杂过程。通过简单的固溶工艺无需进一步处理即可获得多种掺杂n型半导体的出色电导率，这表明在未来的有机电子器件中，很多种1,4-二氢吡啶衍生物都可以用作n型掺杂剂。