This work demonstrated that cyclophane-based shielding strategynot only sterically protects the graphene nanoribbons (GNRs) backbone but also imparts internal strain, enabling singly dispersed GNRs while simultaneously modulating their optoelectronic properties, as demonstrated by the synthesis and investigation of three cyclophane-shielded GNRs (CsGNRs) and model nanographenes with varying cyclic chain lengths. Terahertz spectroscopy reveals a marked increase in charge carrier mobility— from 190 to 330 cm²V⁻¹s⁻¹ —as the chain length shortens, attributed to both reduced effective mass and increased scattering time. The resulting singly dispersed CsGNRs enable the fabrication of single-electron transistors showing a clear Coulomb blockade behavior at low temperatures. This work provides a generalizable strategy for engineering solution-processable GNRs compatible with quantum device applications.

原文链接：https://www.nature.com/articles/s41557-026-02172-z.pdf