Synthesis and Self-Assembly of Monodisperse Graphene Nanoribbons: Access to Submicron Architectures with Long-Range Order and Uniform Orientation,ACS Nano

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Synthesis and Self-Assembly of Monodisperse Graphene Nanoribbons: Access to Submicron Architectures with Long-Range Order and Uniform Orientation
ACS Nano ( IF 15.8 ) Pub Date : 2025-01-24 , DOI: 10.1021/acsnano.4c12313
Jiangliang Yin ₁ , Hanfei Wang ₂ , Daniel Pyle ₁ , Shinyoung Choi ₁ , Yuzi Liu ₃ , Jianguo Wen ₃ , Jeffrey R Guest ₃ , Joseph W Lyding ₂ , Guangbin Dong ₁

Affiliation

Fabricating organic semiconducting materials into large-scale, well-organized architectures is critical for building high-performance molecular electronics. While graphene nanoribbons (GNRs) hold enormous promise for various device applications, their assembly into a well-structured monolayer or multilayer architecture poses a substantial challenge. Here, we report the preparation of length-defined monodisperse GNRs via the integrated iterative binomial synthesis (IIBS) strategy and their self-assembly into submicrometer architectures with long-range order, uniform orientation, as well as regular layers. The use of short alkyl side chains benefits forming stable multilayers through interlocking structures. By changing the length and backbone shapes of these monodisperse GNRs, various three-dimensional assemblies, including multilayer stripes, monolayer stripes, and nanowires, can be achieved, leading to different photophysical properties and band gaps. The discovery of these intriguing self-assembly behaviors of length-defined GNRs is expected to enable various future applications.

中文翻译：

单分散石墨烯纳米带的合成和自组装：获得具有长距离有序和均匀取向的亚微米结构

将有机半导体材料制造成大规模、组织良好的架构对于构建高性能分子电子学至关重要。虽然石墨烯纳米带（GNR）在各种器件应用中具有巨大的前景，但它们组装成结构良好的单层或多层结构构成了巨大的挑战。在这里，我们报告了通过集成迭代二项式合成（IIBS）策略制备长度定义的单分散 GNR，并将其自组装成具有长距离有序、均匀取向以及规则层的亚微米结构。使用短烷基侧链有利于通过互锁结构形成稳定的多层。通过改变这些单分散 GNR 的长度和骨架形状，可以实现各种三维组装，包括多层条纹、单层条纹和纳米线，从而产生不同的光物理特性和带隙。长度定义的 GNR 的这些有趣的自组装行为的发现有望使各种未来的应用成为可能。

更新日期：2025-01-24

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