Max Planck Institute for Polymer Research, Ackermannweg 10, Mainz, 55128, Germany.
Molecular Materials and Nanosystems, Institute for Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, Eindhoven, 5600 MB, The Netherlands.
Nat Commun. 2018 Jan 31;9(1):451. doi: 10.1038/s41467-017-02805-5.
It is still a great challenge to fabricate conjugated polymer monolayer field-effect transistors (PoM-FETs) due to intricate crystallization and film formation of conjugated polymers. Here we demonstrate PoM-FETs based on a single monolayer of a conjugated polymer. The resulting PoM-FETs are highly reproducible and exhibit charge carrier mobilities reaching 3 cm V s. The high performance is attributed to the strong interactions of the polymer chains present already in solution leading to pronounced edge-on packing and well-defined microstructure in the monolayer. The high reproducibility enables the integration of discrete unipolar PoM-FETs into inverters and ring oscillators. Real logic functionality has been demonstrated by constructing a 15-bit code generator in which hundreds of self-assembled PoM-FETs are addressed simultaneously. Our results provide the state-of-the-art example of integrated circuits based on a conjugated polymer monolayer, opening prospective pathways for bottom-up organic electronics.
由于共轭聚合物的复杂结晶和薄膜形成，制备共轭聚合物单层场效应晶体管（PoM-FET）仍然是一个巨大的挑战。在这里，我们展示了基于单个共轭聚合物单层的 PoM-FET。所得到的 PoM-FET 具有高度的重现性，并表现出高达 3cmV s 的电荷载流子迁移率。这种高性能归因于聚合物链在溶液中已经存在的强相互作用，导致在单层中呈现明显的边缘取向堆积和良好定义的微结构。高重现性使得离散的单极 PoM-FET 可以集成到反相器和环形振荡器中。通过构建一个 15 位码发生器，同时寻址数百个自组装的 PoM-FET，展示了实际的逻辑功能。我们的结果提供了基于共轭聚合物单层的集成电路的最新范例，为自下而上的有机电子学开辟了有前景的途径。
