Programmable Fabrication of Monodisperse Graphene Nanoribbons via Deterministic Iterative Synthesis,Journal of the American Chemical Society

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Programmable Fabrication of Monodisperse Graphene Nanoribbons via Deterministic Iterative Synthesis
Journal of the American Chemical Society ( IF 14.4 ) Pub Date : 2022-08-26 , DOI: 10.1021/jacs.2c05670
Jiangliang Yin ₁ , Peter H Jacobse _{2,

3} , Daniel Pyle ₁ , Ziyi Wang _{2,

3} , Michael F Crommie _{2,

3,

4} , Guangbin Dong ₁

Affiliation

While enormous progress has been achieved in synthesizing atomically precise graphene nanoribbons (GNRs), the preparation of GNRs with a fully predetermined length and monomer sequence remains an unmet challenge. Here, we report a fabrication method that provides access to structurally diverse and monodisperse “designer” GNRs through utilization of an iterative synthesis strategy, in which a single monomer is incorporated into an oligomer chain during each chemical cycle. Surface-assisted cyclodehydrogenation is subsequently employed to generate the final nanoribbons, and bond-resolved scanning tunneling microscopy is utilized to characterize them.

中文翻译：

通过确定性迭代合成可编程制备单分散石墨烯纳米带

虽然在合成原子级精确的石墨烯纳米带 (GNR) 方面取得了巨大进展，但制备具有完全预定长度和单体序列的 GNR 仍然是一个未解决的挑战。在这里，我们报告了一种制造方法，该方法通过利用迭代合成策略提供结构多样化和单分散的“设计”GNR，其中在每个化学循环中将单个单体掺入低聚物链中。随后采用表面辅助环化脱氢生成最终的纳米带，并利用键分辨扫描隧道显微镜对其进行表征。

更新日期：2022-08-26

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