Graphene-like nanoribbons connected by four-/five- membered rings on pentacene/picene precursors, Au(110) surface

The rapid development of functional graphene-like nanoribbons with high-quality has become increasingly reliant on multiple nanofabrication platforms while traditional methods are facing mounting limitations in this regard. Consequently, the demand for novel techniques to explore and manipulate graphene-like nanoribbons has surged. Herein, we report an on-surface synthesis of graphene-like nanoribbons on pentacene/picene monomers via a series of self-assembly and annealing on the one-dimensional(1D) Au(110) substrate. Our scanning tunneling microscope(STM) research reveals that four-/eight- membered rings are formed between adjacent molecules. Furthermore, we demonstrate the technique to manipulate the pentacene dimer without breaking its structure by operating an STM tip. Our results exhibit a possible platform for developing next generation graphene-based quantum computing designs and a technique to obtain multiple functional graphene-like nanoribbons with high-precision.