Organic electronics is an exciting field of research offering innovative technologies from roll-to-roll inkjet-printed solar cells to foldable displays for cellphones and televisions. These functional devices exploit the flexible nature of conjugated organic materials, both polymeric and molecular, to absorb and emit light and to facilitate transport of charge carriers. A major driving force of development within the field is the creation of novel high-performance building blocks, providing a fruitful and ever-growing library of materials for tailored applications. Most of these building blocks contain chromophores that are entirely synthetic, yet there exist many naturally occurring building blocks, which have been relatively overlooked, despite their innate high stability and inexpensive nature. Indigo is the most produced dye worldwide and has one of the richest histories of all known textile dyes, dating before 4000 BC. Indigo’s superior photostability has been linked to fast, favorable deactivation pathways following light absorption. But through one straightforward reaction, the chromophore of indigo can be transformed to a new chromophore with remarkable optoelectronic properties.

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吲哚萘啶：受天然靛蓝染料启发的有机电子多功能发色团

有机电子学是一个令人兴奋的研究领域，它提供了创新的技术，从卷到卷的喷墨印刷太阳能电池到手机和电视的可折叠显示器。这些功能性器件利用了聚合物和分子共轭有机材料的柔韧性，可以吸收和发射光并促进电荷载流子的传输。该领域内发展的主要动力是新型高性能积木的创建，从而为定制应用提供了富有成果且不断增长的材料库。这些构件中的大多数都包含完全合成的生色团，尽管存在先天的高稳定性和廉价的性质，但仍然存在许多天然存在的构件，这些构件已被相对忽略。靛蓝是世界上产量最高的染料，并且是所有已知纺织染料中最丰富的历史之一，其历史可追溯到公元前4000年。靛蓝的出色光稳定性与光吸收后快速，有利的失活途径有关。但是通过一个简单的反应，靛蓝的发色团可以转化为具有显着光电特性的新发色团。