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Walking the Route to GHz Solution-Processed Organic Electronics: A HEROIC Exploration

机译：走向GHz解决方案的路线，加工有机电子产品：一个英勇的探索

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Abstract Limited charge carrier mobility of organic semiconductors, especially for solution‐processed polymer thin films, has typically relegated organic electronics to low‐frequency operation. Nevertheless, thanks to a steady increase in electronic properties of organics, much higher operation frequencies are feasible, suggesting a possible and appealing scenario where lightweight, cost‐effective, and conformable electronics can integrate both sensing and radio‐frequency transmitting functionalities, which are the key to unlock pervasive networks of distributed sensors revolutionizing human–environment interaction. Few years ago, it was suggested that gigahertz (GHz) field‐effect transistors could be achievable even with solution‐based processes. This was the basis for the European Research Council project high‐frequency printed and direct‐written organic‐hybrid integrated circuits (HEROIC), which in the last few years investigated such unexplored path. Here, the authors report their vision toward the achievement of radio‐frequency organic electronics mainly with solution‐based and scalable processes, with reference to the experience of the HEROIC project and to some of the most notable literature examples. The authors show that the achievement of solution‐processable organic field‐effect transistors with GHz operation is indeed feasible, but requires considering a carefully revised scenario in which the main role is played by charge injection, together with the geometric overlap, the capacitive parasitism associated to fringing and some constraints on the dielectric layer thickness.
机译：摘要有机半导体的有限电荷载流子迁移率，特别是对于溶液加工的聚合物薄膜，通常将有机电子被降低到低频操作。尽管如此，由于有机物体的电子特性稳定增加，更高的操作频率是可行的，暗示轻质，经济高效和可适得的电子设备的可能和吸引力的场景可以集成感测和射频传输功能，这是解锁分布式传感器普遍网络的关键彻底改变人类环境互动。几年前，有人建议，即使使用基于溶液的过程，也可以实现Gigahertz（GHz）场效应晶体管。这是欧洲研究委员会项目高频印刷和直接写的有机混合集成电路（英雄）的基础，在过去几年中调查了这种未开发的道路。在这里，提交人报告了他们主要通过基于溶液和可扩展的过程实现射频有机电子产品的愿景，并参考英雄项目的经验和一些最值得注意的文献示例。作者表明，通过GHz操作的解决方案可处理的有机场效应晶体管确实可行，但需要考虑仔细修改的情况，其中主要作用是电荷注入的主要作用，以及几何重叠，相关的电容寄生寄生作用对介电层厚度的条纹和一些约束。

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